Ooh, fun topic! I actually have answers for both questions:
Shows I read about but was really underwhelmed to see:
Double Dare (Trebek): I first read about this in the EOTVGS, and it looked like an intriguing show; isolation booths? Alex? Big money? I'm there! I finally got to see it when it was a Faux Pause Pick on GSN, and ended up...meh about it. I liked the bonus round (and still do), but the main game just doesn't do it for me.
Play the Percentages: I never got to see this show when it was on USA, but read about it in the EOTVGS. YouTube made it possible to see it when I was in grad school, so I watched an episode from both versions (couples and individuals). Other than getting some chuckles out of Geoff and Judge Von Erik, the game itself was pretty boring. Even a massive jackpot win just wasn't that exciting. This is one show I've honestly never really had any inkling to go back and watch more of, in either format.
Shows I looked forward to premiering but was underwhelmed:
Temptation and Crosswords were my immediate answers, but I'm going to give the edge here to Crosswords. By all measures, Crosswords *should* have been more successful, but a broken game format, robotic host, and bonus round wins that just didn't really seem all that exciting did in my excitement for the show pretty quickly. Somebody on this group was kind enough to record the first 4 aired episodes for me on a DVD, and while I'm thankful to have had that, I was way less excited about Crosswords after seeing it than Temptation. Honestly, if Crosswords was People Puzzler, I probably would have watched it almost every day.
Anthony