Nick at Nite is celebrating John Ritter by airing a nine-hour Three's Company marathon, starting at 9PM. The night kicks off with the first episode, where Chrissy and Janet tells Mr. Roper their new male roommate is gay. Later episodes include Dean Travers, Mr. Furley (the 3:30 episode, "Jack Goes the Distance," has Jack and Mr. Furley in a boxing match - John Ritter and Don Knotts physical comedy!), various hijinks with hot women, and finally, Vicky Bradford, the woman Jack ends up living with in Three's a Crowd.

Read the whole schedule with episode descriptions.

Gothamist on John Ritter's sad passing.