On the DIY side, I love "House Invaders" (or is it "Home Invaders"?) They come in, take stuff you already have and transform a room or two. I think the US rip-off is called Freestyle. I enjoy the Brit version of "What Not to Wear" much more than the US version.
On the Sci fi side, I LOVE the new "Dr. Who". I wasn't as fond of the older version, maybe because I just wasn't ready to wrap my head around some of it back then. The only problem with BBC America is that we get a series, then it goes away and you don't get to see the next season/series for ages when I know perfectly well it's been out for a while. I've seen one ep of the second season of Dr. Who, then last night a season one ep, then the night before I saw a season three episode. Ugh... Looking forward to seeing "Torchwood" with the lovely Captain Jack again. And I loved "Afterlife", though all I ever saw was one series/season. Did it ever do more? I so want to know what happened!