<P> Often, the network - to - local transition between the end of the network primetime schedule and late local news on broadcast networks will feature the network show credits on the bottom of the screen, while the local news teaser sequence, station identification, news opening, and then the top story will take place . Once the credits end, the local news broadcast zooms in to fill the screen, creating a seamless hand - off . Despite some objections by television production unions, some programs, such as those that air on Discovery Networks and the U.S. version of the National Geographic Channel only air the credits during a program's premiere broadcast, referring viewers to a website to view the credits in subsequent broadcasts . </P> <P> Some networks, such as GSN, have even begun cutting off the credits before they finish, most likely to allow more time for commercials, though GSN has begun to squeeze the production company closing credits to the bottom third of the screen and show the entire credits during that time; Spike (only on its original programming and certain syndicated shows), Oxygen and Hallmark Channel also squeeze the production company credits to the lower third of the screen . Some cable channels mix use of generic and the actual production company credits depending on the show, ABC Family currently airs generic credits on most acquired programs where most episodes have no tag scene, while acquired programs where most episodes do feature one, the tag scene and / or production company credits are aired full - screen, and since June 2010, the channel's original series have the closing credits overlaid on the final scene of the episode (though these were separated in airings of their original programs via its website and VOD service until 2012). </P> <P> Until CBS opted not to continue maintaining rights to the Hallmark Hall of Fame series in 2011, the original credits were aired; the ending promo would be shown first, then the original closing credits . When the Hallmark Hall of Fame moved to ABC in 2011 starting with the telecast of Have a Little Faith, with the advent of ABC using generic credits on some television specials, the network began using marginalized closing credits being played concurrently with the ending promo; as a result, original closing credits are no longer seen on original airings, and must be first seen on the DVD release or the Hallmark Channel rebroadcast . </P> <P> Also, UPN used the announcer overlapping studio's logo music and sounds over that logos before split - screen credits of UPN programming . </P>

When did credits switch from beginning to end