Which of the Gang's plans would work out best for the plot of a TV show?

First of all, imagine if owning/running Paddy's pub was just a one or two episode plan the gang came up with to try to make money, but never worked out. Which of the other plans they've had would work out best to:

A. Be the plot of the entire series?

B. Be the most interesting to exploit for a two or three episode plot (if it isn't already)?

C. Be a recurring plot or a side character's "thing"?