WBTS-CD), in January 2017. Comcast also owned Comcast Local (CL), a Detroit-based sports network that was distributed throughout Michigan and central Indiana. The network provided coverage of local collegiate and high school sports events, as well as minor league sports throughout its broadcast area. Comcast Local ceased operations in February 2008, as every major professional or college team in the region had its programming tied to FSN Detroit and/or the Big Ten Network. Related services High definition Each regional channel (and in some cases, their alternate feed) has its own separate high-definition feed, with their own set schedules of programming – including live sports events as well as locally produced and NBC Sports-distributed national programs and live studio shows – available in HD. NBC Sports Northwest currently does not maintain a high-definition simulcast in the Seattle market. Overflow feeds Most NBC Sports Regional Networks maintain alternate (or overflow) feeds under the Plus brand (with the network's regional name suffixed preceding the "Plus" title) for the broadcast of two or more events involving teams the respective network holds the broadcast rights to carry. NBC Sports Philadelphia maintains a different arrangement, using sister channel NBC Sports Philadelphia Plus to serve as a de facto overflow network in the event that two local games were scheduled to air simultaneously on NBCS Philadelphia. National programs Programming strategy Each of the NBC Sports regional network outlets have acquired the play-by-play broadcast rights to major sports teams in their regional market (exempting NFL regular season or playoff games, since the league's contracts require all games to be aired on broadcast television in each participating team's local markets). In addition to local play-by-play coverage, the NBC Sports networks also produce and broadcast pre-game and post-game shows, and broadcasts weekly "magazine" shows centered on the teams that maintain rights with the individual network. In some markets, NBC Sports competes directly with other regional sports networks for the broadcast rights to team-specific programming. National sports programming Live national play-by-play Premier League select games Notre Dame hockey select games Atlantic 10 basketball select games Other sports NASCAR Sprint Cup Series & NASCAR Xfinity Series live practice & qualifying coverage when NBCSN & CNBC are unable to broadcast due to other programming. Started in 2015. See also NBC Sports Broadcasting of sports events References and footnotes External links NBC Sports Website NBC Sports Bay Area NBC Sports California NBC Sports Chicago