Ricky and Lucy. Ross and Rachel. Sam and Diane. These are just some of the best TV couples of all time. But don't you dare forget the romance of Marshall Eriksen and Lily Aldrin. Let's just admit that they're the best couple on "How I Met Your Mother," shall we? We should all be so lucky to have a love story like theirs. Their courtship is a realistic fairytale filled with ups and downs, laughter, mutual respect, and unconditional acceptance.

Cue that collective "awwww" and take in all the hilarious cuteness. Here are 19 times their relationship was pretty much the greatest.