4. 'The Simpsons'
The fact that The Simpsons landed at Number Four on this list proves how much we take it for granted. After all, the show is currently in its 26th season, and there's no reason to think it won't reach 30 and beyond. Many people who watch it now weren't even born when it began, so they don't actually know what it's like to live in a pre-Simpsons world. They've also seen many, many sub-par episodes. Nothing gets the internet arguing faster than trying to determine when the show peaked, but most sensible people agree there was a drop-off after season 10. Zooming in further, seasons two to seven feel very, very special. They may even contain the greatest television ever made.