Just discovered Psych - halfway through season 1 and quite enjoying it, didn't realise it was quite as funny as it is, Dule Hill is great, his partner, I can see getting annoying after a couple of seasons.
The problem with watching stuff like this back-to-back is that any weaknesses in either writing or season-long arcs, do get exposed quite quickly. This repetitiveness really got exposed for me whilst watching numb3ers, I was quite intrigued during season one, however, I was bored witless by the entire premise by season 3 and didn't finish the season.
Some shows can take bulk viewing (i.e watch as many as your eyeballs will allow before you have to go to bed! and then starting again the next day) in fact most shows can, but not all