06/13/1983 at 01:00 AM EDT
PBS (8-9 p.m. ET)
Since it is among our most commercial arts, the musical sometimes is overlooked as one of this country's most important cultural contributions. This concert by pros Mary Martin and John Raitt gives Broadway melodies their due. Before a White House audience that includes President and Mrs. Reagan, Martin and Raitt sing selections from such shows as South Pacific, The Pajama Game and Annie Get Your Gun.