I can't find the Twenty One pilot done for CBS, but it is distinguishable in having the word "SPONSOR" where the word "GERITOL" later appears on the upstage set wall.

If memory serves, it is very similar to the set ultimately used on NBC that we've all seen in kinescopes. The question is, why would they have built the set with the giant picture windows on the isolation booths and the score readouts hanging off of Jack Barry's podium when they could have repurposed the set built for the CBS pilot? Is there a kinescope of the giant set? Was it even used on air? One little clue is that the "giant" set, above, has the word "GERITOL" on it, so they clearly had a sponsor and possibly a network.

Does there exist an episode guide for Twenty One?

Also, in the picture of the "giant" set above, what are the little gizmos sitting on top of the enclosures that house the score readouts?

d so there's no longer a sticky-outy part.

Scott, please remember that a lot of us aren't in the industry.  We'd appreciate it if you wouldn't use technical terms.

Presumably both versions of Jeopardy! tape in the same studio, so it makes sense that major set changes would carry over.

If you compare the above pictures to the floor we currently see on air (here are two recent images), you can see that they've filled in the area between the host's position and the game board so there's no longer a sticky-outy part.

Fingers crossed GSN gets to the unaired episode of Match Game '16 that was made during its 5th season.

While we're in the Jackpot! well

https://www.youtube.com/watch?v=G6lWuaeGmWY&list=WL&index=8