I saw a few episodes of the
Vampire Diaries and it was completely forgettable for me, it seems like another teen drama but add vampires. I have watched a few teen dramas, Veronica Mars, Inbetweeners, Freaks and Geeks, and Undelcared but they're not the type of teen drama I'm talking about it was more 90210. I also like the vampire genre, I watch a lot of vampire themed tv and movies, but this really didn't show me anything interesting.
True Blood on the hand has fantastic moments and characters as Calinthalus has shown, but as lukebourassa has pointed out the pace and amount of filler make it hard to watch. If it wasn't for the sex I don't think people would be bothered to stick around for the good parts of the show. In some ways it's original and hilarious, it definitely has pay offs, including the sex.
Stargate: Universe was pretty terrible in many respects, bad acting from almost everyone, extremely derivative and unoriginal, but Robert Carlyle was brilliant and I wasn't a big fan of his before this show after seeing him in many movies.
Dollhouse didn't make any sense, and the action was poorly done but used a lot, most of the episodes were a complete bore. You can store a person's memories and personality and upload into someone else, so you create a company that solves problems like
hostage situations or provides hookers with various expert personalities.
Heroes had a great first season but they couldn't resolve the plot, they didn't seem to have a plan, and I just didn't care enough about the characters as they got used to their powers, a lot of what made the show for me was how they reacted to discovering they had powers. What was going on with the acting, writing, and direction for the Peter Petrelli character, a lot of the time his actions were idiotic, he was played as if he had learning difficulties at times as well, but other times he seemed to have average intelligence. There weren't enough limits, a lot of heroes were way too powerful, and that always leads to bad storytelling.