Parade tracked down a few videos. Seven of them, to be exact.
The site says that one of Alex's other shows, Double Dare, was "very short-lived." But as an entry pointed out a few days ago, old game shows live on and on, and Double Dare turns up on Buzzr on the weekends. The other shows are all relegated to YouTube for now, but you never know when they might see the light of cable again.
We have to make an exception for Wheel of Fortune, where Alex did his April Fools gig as host. He was a little too emphatic on the show, I thought, but it wasn't his usual job so I'll cut him some slack. Pat Sajak seemed a lot more relaxed on Jeopardy.
Parade doesn't note Alex's very first game show hosting gig, on the Canadian high school quizzer Reach for the Top. A bit of video shows him asking students about wombats. They're from Australia, if you didn't know.