From listening to commentaries on The Simpsons (which was the last holdout to hand drawn animation), they converted to digital ink & paint which is what all 2D animation is now. I guess hand drawn doesn't exist anymore because sadly technology has advanced too much. In my mind however, even with digital cells, you can make things much more detailed and wonderful looking than CG. I cant imagine that CG for Television is cheaper/easier to produce than digital cells, but like others said it is the standard. I do enjoy shows like Transformers Prime, Star Wars Rebels, DreamWorks Dragons etc... but there are some really bad CG shows out there as well.
There are no more good TV Shows, only ones that haven't disappointed me yet.