This is my collection:
Well among what I have seen at #1 spot I would say to watch Dexter. <- 9.0 on IMDb.
A Miami forensics expert who is also one of the best serial killer. The story have total of 7 Season right now. Season 8 will be the last and will start around June of 2013 and will end by september. Check List of Episodes for more info.
#2 The Walking Dead
Must watch if you love Zombie stuff.Currently on-going and is at 3rd season.
#3 Breaking Bad
Drugs stuff. 5 Seasons in total. Season 5th is on-going right now but will end this year (2013).
Watch it if you like to see stuff related with money, drugs,gangsters.
#4 The Big Bang Theory
Funny stuff, nothing else. 8.6 on IMDb
#5 How I met Your Mother
There is probably no one who has not heard of this show. Comedy stuff and next season will be the end of it (Season 9).
I have not seen many TV series so make some additions if you want to. :)
I know it's not much :( Anime collection is over 30 :3Must Watch TV series
Re: Must Watch TV series
Great post!!