Suitable for all, on the tube, 4 letters
Shows that top the Nielsens, 6 letters
Conan O'Brien, e.g., 6 letters
Regis or Oprah, 6 letters
Ryan Seacrest, e.g., 6 letters
BERT, 11 letters
Colbert and Stewart, 7 letters
Game show presenters, e.g., 7 letters
Letter man Sajak and Letterman, 7 letters
Program guides, 7 letters
Sajak, Smiley, and Springer, 7 letters
Trebek and Sajak, e.g., 7 letters