Theoretically, the most I could see won is somewhere around $60,000 at this point, provided they won $25K on Plinko, won GR with around $25-$27K in prizes, another $1,000 for a nice IUFB, $11K on the Wheel, and a DSW with both showcases worth around $25K.
Some other notes/observations:
-In addition to being Tom Kennedy's appearance to plug Body Language, 5355D also featured the first pet adoption segment, with the dog appearing in the Lucky Seven car. Another episode on the last batch had a dog appearing several times throughout the episode.
-The episode before that one, 5354D was first episode where the orange/red lights replaced two-thirds of the white lights in the light border. Several episodes afterwards would have the opening titles in various colors, from green, orange, and pink in addition to the standard blue. That episode had some staff revisions on the credits, including the "for Goodson-Todman" being dropped from the Creative Consultant credit.
-5362D was the last playing of Penny Ante with the game's logo in its red-tinted scheme. Although listed as confirmed on Steve's site, 5415D did have the new white sign, and is infamously known as a playing where the price YES/NO indicators wouldn't work.
-The set change for Most Expensive had not yet occurred as of 5354D.
-5351D's playing of 3 Strikes did not have the + sign on the gameboard, however Bob did specifically mention the game as "3 Strikes Plus", indicating that the sign will be added very soon when played again for five digits.