Season 3 of Sherlock was decent. Everybody else loves it but I must have had too high of expectations. They do a lot of character development through it, which is fine and fun, but there weren't really any mysteries. At least not like the first two seasons. And the overarching bad guy was nowhere near as interesting as Moriarty. But the way the set up season 4 makes me think it will be much better.
Season 4 of Shameless is off to a great start. I think it has to be the most underrated show on TV. If you're looking for a show definitely give season 1 a try. Admittedly you won't fall in love with it, at least for the reasons that I fell in love with it, until towards the end of season 1.