Full disclosure: I am a 90210 junkie. I've seen every episode of the original Beverly Hills 90210 at least twice and sometimes feel I remember their high school experiences more clearly than my own. So of course I watched the newly revived 90210 when it premiered last year. Putting aside the reworked theme song (BAD! WRONG! INVIOLABLE!), it was pretty ok and worth watching, if only to marvel at the outfits and the hairstyles.
And then they made Silver, one of the primary characters, bipolar, and I had to stop watching. The story arc around her "mental breakdown" and subsequent hospitalization was so offensive and unrealistic that I deleted the next few episodes from my Tivo without watching them, intentionally skipping Donna Martin's return to West Beverly. My interest in and love for the Donna Martin character is such that this is roughly equivalent to ignoring Obama's inauguration after working on his campaign for two years, which should show you how wildly upset the bipolar storyline made me.