Testify! I don't hate watch because there's too much else on to enjoy watching, and I have been soured on a series because of too much criticism from message boards and trying to defend a show I enjoyed.
I would give up a show but catch the last episode wrap-up too, but eventually, I stopped doing even that. Now if I'm really interested in how a show ends, I try to find a recap the day after.
I loved Harper's Island! I didn't realize it was basically a miniseries slasher movie (which is usually not my thing), but there was something about it that was so stupid and so enjoyable.
I had given up The X-Files by season 8 when Mulder left, but at some point when my interest was rekindled (thanks to slash fan fiction!), SyFy was rerunning the series, and I did watch seasons 8 and 9. They really weren't bad. Doggett & Reyes made a nice team, and Scully's role could have transitioned more to a mentor role. I never saw any of the X-File movies other than the first, and while I watched the first season reboot, I didn't bother with the second.
And in an extremely UO, I hate that they paired off Mulder and Scully romantically and that she had that miracle baby.