Theme Night!

I have to make up questions on the fly this week, so here goes:

1. What song's copyright is held by the estates of Mildred J. Smith and Patty Hill Smith until 2030?
2. What is the street address of NBC's headquarters in Manhattan?
3. What 90s television show was the debut of twins Tia and Tamera Mowry?
4. What card game is usually begun by removing one queen from a 52-card deck, then dealing all the remaining cards to the players?