The overarching plot is one of the reasons why I got into Supernatural.. The first five seasons had the Monster of the Week, a season long overarch, and then those tied into a five-season long finale that wrapped everything up (the creator of the show intended it to be 5 seasons only). After season 5 it went downhill a bit because they lost some direction. I still get a kick out of it even though it is a tad stupid at times. The guys who plays Dean and Cass crack me up and I love the choices of music (and cars).

I think this one is coming to an end soon if they can't breathe some life back into it though. Season 6
through 9 has been largely hit or miss.
SPN's rabid internet fanbase scared me away from it. I read the recaps for a while cause I had a few friends who watched and being conversant in it was mandatory for a while, but that's all.
The Walking Dead is good, but it's hard for me to watch. It's like a depressive's wildest dreams come true. Every single episode is a bummer. lol.
That would be why I have no plans to watch it.
Hopefully I will be finished with Season 6 of Doctor Who by the end of the week. I heard the Cybermen received a make-over for the 2013 Christmas special. I want to see it but can't watch it out of order (I'm OCD that way).
Sort of. I won't spoil it, but it was very cool. I wouldn't advise anyone watch out of order these days... it's hard enough to follow *in* order!

"The Next Doctor" was Mom's first ep - the Victorian steampunk companionless Tennant Christmas one. She hates sci-fi, so I had to literally sit her down and tell her, "It's not that kind of sci-fi - it's smart, it's slightly camp, there's history, and it's funny. Watch the first ten minutes and if you don't like it, I'll turn it off." ... within the week, she was buying the first of the DVD sets.

She won't watch the Matt Smith ones though, although she did enjoy the anniversary episode.
I call the Tennant and Eccleston eras of Who "sci-fi for people who don't like sci-fi." Not really the case anymore, and I doubt it will be as long as Moffat's at the helm. I know a lot of Old Whovians actually disliked the RTD era because it "wasn't sci-fi enough," but I think that actually made the show more accessible to a lot of people who otherwise wouldn't have watched.
Just dripped some Key Lime, but it's not ready yet, needs a few more days.