RICHARD: Done. Now, what else is on the hit parade?
A hit parade is a ranked list of the most popular recordings at a given point in time, usually determined by either sales or airplay. Billboard magazine published its first hit parade on January 4 1936.
It’s possible that Richard is specifically thinking of the radio and television music program Your Hit Parade, broadcast from 1935 to 1953 on radio, and from 1950 to 1959 on television. Each Saturday evening, the program would play the most popular and bestselling songs of the week. It was invariably referred to, incorrectly, as The Hit Parade.
The Annotated Gilmore Girls 