the program). More conventional overnight network newscasts debuted in the early 1990s to fill airtime on major network affiliates that had adopted or were planning to adopt 24-hour program schedules (which many independent stations had begun to adopt since the prior decade) in an effort to compete with increased late-night offerings on cable television and more specifically to compete with CNN, which had been lauded for its round-the-clock coverage of the Gulf War in early 1991. During the 1991–92 television season, the "Big Three" networks each premiered their own overnight newscasts, produced as rolling 60- to 90-minute-long blocks intended for affiliates to air in repeated fashion until the start of the next station-designated broadcast day: NBC Nightside (debuted in November 1991, and produced by the Charlotte-based NBC News Channel affiliate video service), ABC's World News Now (debuted in January 1992 as a more conventional newscast, which soon evolved into a more laid-back format, mixing serious news with features and some ad-libbed and intentional humor), and CBS's Up to the Minute (debuted in March 1992 as a replacement for Nightwatch, consisting of a mix of hard news, weather and sports segments as well as feature reports originally featured on the CBS Evening News and CBS Sunday Morning). , World News Now is the only overnight news effort that debuted in 1991–92 which continues to air. Nightside was discontinued in September 1998, in favor of the overnight entertainment block "NBC All Night" (initially offering week-delayed rebroadcasts of The Tonight Show and Late Night weeknights, same-day rebroadcasts of Meet the Press on Sundays, and weekly 90-minute classic episodes of Saturday Night Live); NBC began offering its early-morning news program Early Today as a de facto overnight newscast in September 2017, after it dropped late-night rebroadcasts of CNBC's Mad Money in favor an earlier live broadcast of the former to accommodate affiliates that had expanded their local morning newscasts into the 4:00 a.m. hour during the 2010s. CBS replaced Up to the Minute in September 2015 with CBS Overnight News, featuring a mix of segments repurposed from the previous day's edition of the CBS Evening News/CBS Weekend News, updated news summaries and additional content. Local and syndicated programming The "midnight movie" format is another popular late night format, found particularly among local stations. Off Beat Cinema (originated on WKBW-TV in Buffalo, New York, before moving to WBBZ-TV and now airing nationally on the Retro