consider that George Gray was warming-up for Jeopardy! for some time.
When was this? I attended tapings in seasons 29 and 30, and Johnny did the warmup. It just surprises me, if he stopped doing it, that he'd start doing it again.
I think Jim Thornton is in-studio for "Wheel".
Affirmative, and he does the warmup plus entertainment between shows.
Speaking of which----I could see him doing J! as well after Johnny retires/dies/whatever. He'd be working under the same employer, with some of the same people that he works with on "Wheel".....and I don't think he's got too much else going on that would interfere.
He does afternoon drive at KNX in LA when Wheel tapings don't interfere.
........That said, being on the road for "Wheel" at times may be a different story.
I can't see that getting in the way. They would have taped the six weeks of Vegas shows in six days. Plus, there are a number of staffers who work for both shows. They never tape at the same time in Culver City, so it probably doesn't happen when one show is taping out of town.
Jeopardy still has the Aleve plug, I forget if there's other pluggery that happens.
There's his, "Closed captioning is sponsored in part by..." line before Double Jeopardy! begins, which isn't live-to-tape. Nothing Johnny announces is live-to-tape aside from the intro.
As far as what Johnny has said for himself about his future with the show, he said to the audience at one of the last tapings I attended he plans to stay with the show as long as he is able. Alex said he's got these same plans too.