My post isn't too much about Bob hosting, but here are a couple new thoughts about the 1985 nighttime version that have come into my head.
In the Cullen Era, the nighttime version was more popular than the daytime version for most of its run, even being a Top 10 show for a couple seasons. But of course, primetime game shows were out of vogue during the '70s, and part of what made the original nighttime version so great were the mail-in Showcase contests, which the '70s nighttime version certainly should have held on occasion to separate it from its daytime counterpart, simply by adding those in post-production. Speaking of sweepstakes, the 1985 version could have been a good opportunity to launch Play Along.
If the 1985 Nighttime show became a hit, I could have tinkered by adding a special Friday Finals episode. In these shows, the four Showcase winners of the week come back on Friday, starting with a One Bid, with the three contestants who didn't win playing in a single Showcase Showdown. PG #1 would be played after the One Bid, with PG #2 played in Act 3 after the Showcase Showdown in Act 2. I'd also make it where PG #1 would be played for a nicer prize, such as a large amount of cash or a luxury car than PG #2 since that player wouldn't have a chance to win money on the Big Wheel, meaning that games like Golden Road, 3 Strikes, and Plinko would often be played for PG #1. The budget would be slightly higher on Friday shows as well and I'd basically just make the Mon-Thu shows the same budget as daytime. This certainly would be possible in this version unlike the '70s version, since it was easier to make shows air sequentially in order, even if I'd still juggle the weeks out of taping order by focusing on airing big wins during premiere week and sweeps periods.
The thing about nighttime was it was still too similar to daytime and perhaps part of the reason why it didn't do as well as many hoped. It basically was just 1972-75 TPIR with some newer games.