being heavily involved in Motorsports, and Monster Trucks in particular, I vividly remember the utter embarrassment that was the failed pilot of Monster Trux 2000 from 1999. Staged racing, fake character owners, and wrestling style plot-lines. it was very depressing, disgusting, and sickening. It was a water-shed moment for Monster Trucks(not in a good way), and has had long lasting repercussions.
I dont think I watched anything on UPN after that until the Voyager series finale.
as for the rest, I enjoyed 7 Days and The Sentential. I watched the first handful of episodes of Enterprise and then moved to a place that didnt have a UPN and didnt miss it any.
I didnt catch Jake 2.0 until SciFi aired it.