The quality of this never-ending series has slipped a long way since its heyday, but you'd be hard-pressed to find a show so well-written and rewatchable for the first 10 or so seasons. It's relatable for kids who watch it, but also, as I grew I noticed and related to other characters, dialogue and plot points.
Some Favourite Episodes:
The City of New York vs. Homer Simpson
22 Short Films About Springfield
The Wizard of Evergreen Terrace
Homer Loves Flanders
King-Size Homer
Homer Badman
Bart on the Road
Simpsoncalifragilisticexpiala(Annoyed Grunt)cious
Behind the Laughter
Homer Goes to College
The Homer They Fall
Homer Simpson in: "Kidney Trouble"
Homer's Enemy
Brother from the Same Planet
The Cartridge Family