Missed pilot - - need info

He and his wife used a fertility expert in order to give birth to their boy. This "expert," it was later found out, used his own sperm to impregnate about 90 women in the region. To avoid any chance of half-children intermarrying, the parents packed up to get as far away as possible, i.e., Bakersfield, CA.

This was the opening scene of the pilot and is one of the most funny scenes in any broadcast sitcom -- when the realization hits the parents as we, the audience, see the obvious similarity (overweight) between the "expert" and their child when he walks into the room while the news is on the TV.