The Maya Rudolph Show premiered Monday night with guest appearances from Sean Hayes, Fred Armisen and Andy Samberg. Paul Drinkwater/NBC hide caption

itoggle caption Paul Drinkwater/NBC

Among Hill Street Blues' many innovations, says David Bianculli, was focusing on a large ensemble cast instead of one or two central stars. Pictured here: Veronica Hamel as Joyce Davenport, Daniel J. Travanti as Capt. Frank Furillo and Robert Prosky as Sgt. Stan Jablonski. David Sutton/NBCU Photo Bank via Getty Images hide caption

itoggle caption David Sutton/NBCU Photo Bank via Getty Images

Family dramas have always been one of television's most difficult genres to do properly, without getting too sweet, too overwrought, or too predictable — but NBC's Parenthood finds the right balance. Above, Ray Romano as Hank, Mae Whitman as Amber, and Lauren Graham as Sarah. Colleen Hayes/NBC hide caption

itoggle caption Colleen Hayes/NBC

Jimmy Fallon took over as host of The Tonight Show on Monday. "I hope I do well," he told the audience. "I hope that you enjoy this." Theo Wargo/Getty Images for The Tonight Show Starring Jimmy Fallon hide caption

itoggle caption Theo Wargo/Getty Images for The Tonight Show Starring Jimmy Fallon

Eleven-year-old Jaron "Bear" Williams practices trumpet before marching in his first Mardi Gras season. The Whole Gritty City follows young student marching bands as they prepare for coveted spots in the New Orleans parade. Courtesy of CBS hide caption

itoggle caption Courtesy of CBS

IFC's The Spoils Of Babylon follows a sister (Kristin Wiig) and adopted brother (Tobey Maguire) caught up in a passionate romance. Katrina Marcinowski/IFC hide caption

itoggle caption Katrina Marcinowski/IFC