I listened to people like you and rented a couple seasons of Curb last year because of this statement. Both me and my brother thought otherwise.
Oh you are one of THOSE... hehe... here's the thing... if you have never seen the Simpsons and I told you to go watch it... You might pick up the 1st two seasons... then you would proceed to never watch it again. They were crappy. Same with shows like futurama, the office, seinfeld, etc... The first season and usually 2nd season are rough for most shows. Especially the good ones. Shows like lost, heroes, grey's have great beginnings but flame out. The really good shows hit their stride season 3. There is where your problem was. You watched an episode or so of their "not very good" first season. The 1st season of Curb mas meh... Curb and Seinfeld statement works... just not on the few episodes that you watched I'm betting.