Here are even more ideas I cococted...take a look and tell which one you like the best!
"A Trip Down Beetles Lane"
Abe Simpson recounts stories he met with the Beetles when they first arrived in Springfield back in 1966 to participate in a special concert hosted by the mayor back then. When Abe learns the concert was a fake and the Beetles made it a publicity stunt, he takes Homer to find the people who can actually tell him the truth, the Beetles.
"The Simpsondian Effect"
Bart discovers a remote-control advice from Dr. Frink’s lab basement that sends him back a day; he gets inspired to undo all the stuff that made his past 48 hours terrible, but don’t realize his present is deeply affecting by it. And the more he is spending time reversed, the more his present will be gone forever.
"4 or 5:30 AM (Apparently They Were Traveling Way Abroad)"
A egotistic host coerces Homer and the family to take part in a family-inspired world race, but what the family don’t realize is that everyone in Springfield will be watching the whole thing live.