The Arthur Murray Party (1950)

Stars:

 Arthur Murray, Kathryn Murray

Ballroom dancing, plus comedy, songs and dance contests on one of the few programs to air over all four major commercial networks. ABC premiered it on July 20, 1950 and it closed on NBC on September 6, 1960. It varied between a half-hour and one hour in length.

Here is the link to the series at the Internet Movie database: http://www.imdb.com/title/tt0042078/?ref_=fn_al_tt_1