This is always a difficult question for me because my answer usually revolves around the show i'm currently watching/fixated on.
Excluding Animes
Comes down to either: Breaking Bad or Supernatural
Breaking bad is a pretty great show, the series Finale is coming up this Sunday! Very exciting! ...also mutually depressing because the show will be over, but it's a great show to watch if you got some free time every now and then.
Supernatural: Sam and Dean Winchester going around helping people, killing monsters, Angels, and Demons, I can't help but like the show. It's also a good show to watch with a little lady, because mine loves the show too
To each his own though, I never watched Burn Notice, it was one of those things where I was going to watch it, but "Life happened" and I got busy, I especially wanted to watch it because i'm a huge Bruce Campbell fan.
Never really watched Top Gear either, except for an episode where they raced some jet and some car in the desert, it was pretty cool, but i'm not really into that kind of stuff.