. . . hands down, is Brothers and Sisters. Literally makes my skin crawl to watch it. I weep for all the people out there thinking they're watching something 1)relevant, 2)'smart', 3)topical, 4)genuine.
It's the smarmiest, most self-satisfied, juvenile and crass thing on television and the people who watch it are either too false or too invested in the show to acknowledge its aggressive idiocy.