TV ADS

I was just thinking about television ads. But not so much the ads themselves but how long they run for. I was watching a tv show today and the commercial break lasted 6 minutes! Thats a little to much ads in one break dont you think? how many commercials must there be before you can continue watching your program? Im just thankful for hulu, DVR, and On-Demand now there is an end in sight for long commercial breaks.