LOL, TWD is poor period, weak writing, terrible plots, almost no character development. Somethign like GOt is adult, mature, slow detailed plotting, in depth, makes TWD look like amateur hour. HBO shows in general take a mroe detailed, realistic look at story telling.TWD is not even in the top 10 TV shows on right now, GOT is one of the top shows on TV.
OP, sounds like you are used to typical simplistic point a to point b plots of regulat shows, shows like GOT are far more complex, in depth then that. If thats the case stay away from the higher tier shows like GOT, mad men, Boardwalk empire, etc....