Toad Force V
Toad Force V, known to its fans (who happen to mostly be nerdy fanboys) as TFV, is an extremely popular television series (even Bowser likes it) in the Mushroom Planet. It was mentioned several times in Mario Party Advance. The series is about a robotic Toad named Jack who fights against evil villains such as the Spore King and Toxic Toad Z along with his partner, the heroine Britney (who is more popular).
In his adventure through Shroom City looking for Gaddgets, Mario had to do several Toad Force V related quests such as looking for a Toad Force V DVD and trying to remember a certain bit of dialogue. Mario also met Mushbert, as Toad who knew and owned everything Toad Force V related.
The series also has a line of action figures which a Paratroopa shopkeeper said "are almost always sold out".
