In 1991, The Tonight Show Starring Johnny Carson moved its start time back five minutes to 11:35 pm. Nightline eventually followed suit, as did Late Show with David Letterman upon its August, 1993 debut.
Why, exactly, was this move made? What do the networks and the affiliates have to gain by having irregular start times late at night? Does it have to do with advertising revenue for the local stations' late local news, as I've heard hypothesized, or is there some weird "Turner Time" ratings theory in play here?Could ABC, CBS or NBC gain more ratings traction if they moved their show back to 11:30 and had a head-start on the competition (Nightline could return to a full thirty-minute broadcast), or would viewers miss the extra five minutes of local news?
Today, by the way, the start times are even more bizarre: The Tonight Show with Jay Leno starts at around 11:34 pm, and Craig Ferguson and Jimmy Fallon's shows have 12:37 am start times.
Why, exactly, was this move made? What do the networks and the affiliates have to gain by having irregular start times late at night? Does it have to do with advertising revenue for the local stations' late local news, as I've heard hypothesized, or is there some weird "Turner Time" ratings theory in play here?Could ABC, CBS or NBC gain more ratings traction if they moved their show back to 11:30 and had a head-start on the competition (Nightline could return to a full thirty-minute broadcast), or would viewers miss the extra five minutes of local news?
Today, by the way, the start times are even more bizarre: The Tonight Show with Jay Leno starts at around 11:34 pm, and Craig Ferguson and Jimmy Fallon's shows have 12:37 am start times.