I have just recently discovered this wonderful show and have only viewed the first season and a few others from the other seasons.
But I can tell you some of my favorite scenes. I loved it when Hal nearly fainted and was given oxygen upon learning his sons had stolen from a church.
In that same episode when he and the boys decided to run away and he called to tell Lois and she reminded him of how much he would miss her. He was so funny on the phone!! Love that guy.
Hal roller skating was a riot and I loved it when he was checking Lois out at the dinner table, and she responded with playful, suggestive body language, which I think was when she made chicken and used shake n bake for pork. Anyway, could go on and on.
I am in the process of downloading seasons 2 - 7 from this site, (please, oh please, Dear God let me do it correctly!!)