Here's a guide of the episodes that have aired on Pluto TV so far. The main purpose of this is to help people catch episodes they missed as the cycle repeats. This shows their current 100-episode cycle with the first date and time each one aired (not counting the six episodes that launched the channel out of order as a preview but those are marked as such). The four episodes skipped are also noted here. I wrote in marker lines every 24 episodes to make it easier to figure out when an episode will air after each time the cycle restarts. This was compiled with the help of the user "The Game Show Channel" and the tpirstats web site.
Currently known and logically extrapolated times when the 100-episode cycle will restart:
Sunday, 12/13/2020 10:00AM ET
Thursday, 12/17/2020 02:00PM ET
Monday, 12/21/2020 06:00PM ET
Friday, 12/25/2020 10:00PM ET
Wednesday, 12/30/2020 02:00AM ET
The Price is Right: The Barker Era on Pluto TV Air Date Guide:
12/01/2020 06:00AM ET: The Price is Right 11_4581 (September 13, 1982)
12/01/2020 07:00AM ET: The Price is Right 11_4582 (September 14, 1982)
12/01/2020 08:00AM ET: The Price is Right 11_4583 (September 15, 1982) (previewed earlier)
12/01/2020 09:00AM ET: The Price is Right 11_4584 (September 16, 1982) (previewed earlier)
12/01/2020 10:00AM ET: The Price is Right 11_4585 (September 17, 1982)
12/01/2020 11:00AM ET: The Price is Right 11_4591 (September 20, 1982) (previewed earlier)
12/02/2020 06:00AM ET: The Price is Right 11_4592 (September 21, 1982)
12/02/2020 07:00AM ET: The Price is Right 11_4593 (September 22, 1982)
12/02/2020 08:00AM ET: The Price is Right 11_4594 (September 23, 1982)
12/02/2020 09:00AM ET: The Price is Right 11_4595 (September 24, 1982) (previewed earlier)
12/02/2020 10:00AM ET: The Price is Right 11_4601 (September 27, 1982) (previewed earlier)
12/02/2020 11:00AM ET: The Price is Right 11_4602 (September 28, 1982)
12/03/2020 06:00AM ET: The Price is Right 11_4603 (September 29, 1982)
12/03/2020 07:00AM ET: The Price is Right 11_4604 (September 30, 1982)
12/03/2020 08:00AM ET: The Price is Right 11_4605 (October 1, 1982) (previewed earlier)
12/03/2020 09:00AM ET: The Price is Right 11_4611 (October 4, 1982)
12/03/2020 10:00AM ET: The Price is Right 11_4612 (October 5, 1982)
12/03/2020 11:00AM ET: The Price is Right 11_4613 (October 6, 1982)
12/04/2020 06:00AM ET: The Price is Right 11_4614 (October 7, 1982)
12/04/2020 07:00AM ET: The Price is Right 11_4615 (October 8, 1982)
12/04/2020 08:00AM ET: The Price is Right 11_4621 (October 11, 1982)
12/04/2020 09:00AM ET: The Price is Right 11_4622 (October 12, 1982)
12/04/2020 10:00AM ET: The Price is Right 11_4623 (October 13, 1982)
12/04/2020 11:00AM ET: The Price is Right 11_4624 (October 14, 1982)
************************24-hour marker************************
12/07/2020 12:00PM ET: The Price is Right 11_4625 (October 15, 1982)
12/07/2020 01:00PM ET: The Price is Right 11_4631 (October 18, 1982)
12/07/2020 02:00PM ET: The Price is Right 11_4632 (October 19, 1982)
(11_4633 is skipped)
12/07/2020 03:00PM ET: The Price is Right 11_4634 (October 21, 1982)
12/07/2020 04:00PM ET: The Price is Right 11_4635 (October 22, 1982)
12/07/2020 05:00PM ET: The Price is Right 11_4641 (October 25, 1982)
12/08/2020 12:00PM ET: The Price is Right 11_4642 (October 26, 1982)
12/08/2020 01:00PM ET: The Price is Right 11_4643 (October 27, 1982)
12/08/2020 02:00PM ET: The Price is Right 11_4644 (October 28, 1982)
12/08/2020 03:00PM ET: The Price is Right 11_4645 (October 29, 1982)
12/08/2020 04:00PM ET: The Price is Right 11_4651 (November 1, 1982)
12/08/2020 05:00PM ET: The Price is Right 11_4652 (November 2, 1982)
12/09/2020 12:00PM ET: The Price is Right 11_4653 (November 3, 1982)
12/09/2020 01:00PM ET: The Price is Right 11_4654 (November 4, 1982)
12/09/2020 02:00PM ET: The Price is Right 11_4655 (November 5, 1982)
12/09/2020 03:00PM ET: The Price is Right 11_4661 (November 8, 1982)
12/09/2020 04:00PM ET: The Price is Right 11_4662 (November 9, 1982)
12/09/2020 05:00PM ET: The Price is Right 11_4663 (November 10, 1982)
12/10/2020 12:00PM ET: The Price is Right 11_4664 (November 11, 1982)
12/10/2020 01:00PM ET: The Price is Right 11_4665 (November 12, 1982)
12/10/2020 02:00PM ET: The Price is Right 11_4671 (November 15, 1982)
12/10/2020 03:00PM ET: The Price is Right 11_4672 (November 16, 1982)
12/10/2020 04:00PM ET: The Price is Right 11_4673 (November 17, 1982)
12/10/2020 05:00PM ET: The Price is Right 11_4674 (November 18, 1982)
************************24-hour marker************************
12/11/2020 06:00AM ET: The Price is Right 11_4675 (November 19, 1982)
12/11/2020 07:00AM ET: The Price is Right 11_4681 (November 22, 1982)
12/11/2020 08:00AM ET: The Price is Right 11_4682 (November 23, 1982)
12/11/2020 09:00AM ET: The Price is Right 11_4683 (November 24, 1982)
12/11/2020 10:00AM ET: The Price is Right 11_4691 (November 29, 1982)
12/11/2020 11:00AM ET: The Price is Right 11_4692 (November 30, 1982)
12/11/2020 12:00PM ET: The Price is Right 11_4693 (December 1, 1982)
12/11/2020 01:00PM ET: The Price is Right 11_4694 (December 2, 1982)
12/11/2020 02:00PM ET: The Price is Right 11_4695 (December 3, 1982)
12/11/2020 03:00PM ET: The Price is Right 11_4701 (December 6, 1982)
12/11/2020 04:00PM ET: The Price is Right 11_4702 (December 7, 1982)
12/11/2020 05:00PM ET: The Price is Right 11_4703 (December 8, 1982)
12/11/2020 06:00PM ET: The Price is Right 11_4704 (December 9, 1982)
12/11/2020 07:00PM ET: The Price is Right 11_4705 (December 10, 1982)
12/11/2020 08:00PM ET: The Price is Right 11_4711 (December 13, 1982)
12/11/2020 09:00PM ET: The Price is Right 11_4712 (December 14, 1982)
12/11/2020 10:00PM ET: The Price is Right 11_4713 (December 15, 1982)
12/11/2020 11:00PM ET: The Price is Right 11_4714 (December 16, 1982)
12/12/2020 12:00AM ET: The Price is Right 11_4715 (December 17, 1982)
12/12/2020 01:00AM ET: The Price is Right 11_4721 (December 20, 1982)
12/12/2020 02:00AM ET: The Price is Right 11_4722 (December 21, 1982)
12/12/2020 03:00AM ET: The Price is Right 11_4723 (December 22, 1982)
12/12/2020 04:00AM ET: The Price is Right 11_4724 (December 23, 1982)
12/12/2020 05:00AM ET: The Price is Right 11_4725 (December 24, 1982)
************************24-hour marker************************
12/12/2020 06:00AM ET: The Price is Right 11_4731 (December 27, 1982)
12/12/2020 07:00AM ET: The Price is Right 11_4732 (December 28, 1982)
(11_4733 is skipped)
12/12/2020 08:00AM ET: The Price is Right 11_4734 (December 30, 1982)
12/12/2020 09:00AM ET: The Price is Right 11_4735 (December 31, 1982)
12/12/2020 10:00AM ET: The Price is Right 11_4741 (January 3, 1983)
12/12/2020 11:00AM ET: The Price is Right 11_4742 (January 4, 1983)
12/12/2020 12:00PM ET: The Price is Right 11_4743 (January 5, 1983)
12/12/2020 01:00PM ET: The Price is Right 11_4744 (January 6, 1983)
12/12/2020 02:00PM ET: The Price is Right 11_4745 (January 7, 1983)
12/12/2020 03:00PM ET: The Price is Right 11_4751 (January 10, 1983)
12/12/2020 04:00PM ET: The Price is Right 11_4752 (January 11, 1983)
12/12/2020 05:00PM ET: The Price is Right 11_4753 (January 12, 1983)
12/12/2020 06:00PM ET: The Price is Right 11_4754 (January 13, 1983)
12/12/2020 07:00PM ET: The Price is Right 11_4755 (January 14, 1983)
12/12/2020 08:00PM ET: The Price is Right 11_4761 (January 17, 1983)
12/12/2020 09:00PM ET: The Price is Right 11_4762 (January 18, 1983)
12/12/2020 10:00PM ET: The Price is Right 11_4763 (January 19, 1983)
12/12/2020 11:00PM ET: The Price is Right 11_4764 (January 20, 1983)
12/13/2020 12:00AM ET: The Price is Right 11_4765 (January 21, 1983)
12/13/2020 01:00AM ET: The Price is Right 11_4771 (January 24, 1983)
12/13/2020 02:00AM ET: The Price is Right 11_4772 (January 25, 1983)
12/13/2020 03:00AM ET: The Price is Right 11_4773 (January 26, 1983)
12/13/2020 04:00AM ET: The Price is Right 11_4774 (January 27, 1983)
(11_4775 is skipped)
12/13/2020 05:00AM ET: The Price is Right 11_4781 (January 31, 1983)
************************24-hour marker************************
12/13/2020 06:00AM ET: The Price is Right 11_4782 (February 1, 1983)
12/13/2020 07:00AM ET: The Price is Right 11_4783 (February 2, 1983)
(11_4784 is skipped)
12/13/2020 08:00AM ET: The Price is Right 11_4785 (February 4, 1983)
12/13/2020 09:00AM ET: The Price is Right 11_4791 (February 7, 1983)