Only Fools and Horses nails
Everyone's seen all the episodes 100 times, but I think everyone would agree that the Christmas special in which Del and Rodney dress as Batman and Robin for a (canceled-for-a-funeral) fancy dress party is one of the most memorable.
A brief explanation if you haven't seen it - They are all dressed up for the party when their reliant robin breaks down, so they have to run through the back streets to make it on time. Here's the clip of what happens - [link]
The episode was on again the other day and which led me to make these
"Del" *punches hand* "Let's go!"