I loved those shows back when they were on. Definitely cheesy but lots of fun to watch anyway. I liked that they didn't take themselves too seriously and they were the sort of shows that you really didn't have to think about, just sit back, relax, and enjoy them for the escapist fun that they were.
I always wanted more Seaquest. Given I think what hurt it was they could never figure out what it wanted to be, straight Sci-fi, monsters, or futuristic political show. If they could have balanced all its parts it could have been better.
I caught Project UFO on youtube, it's an interesting one given that Jack Webb was part of it. He must be spinning in his grave at cop shows these days. I'm still hoping the reboot of Dark Skies by the original show creators would make it but seems like they're having no luck.