Broncos and defending Super Bowl champion Los Angeles Rams will be part of the NFL's Christmas Day slate. Market coverage and television policies As with Fox's coverage, the network's stations are divided into different groups based on the most popular or closest team to that market or, if that does not apply, based on the allure of a particular game. Each football game is rated as an "A", "B" or "C" game, with "A" games likely being televised nationally and "C" games airing only in the home television markets of the two participating teams. Significantly more behind-the-scenes resources are dedicated to "A" game coverage. Under NFL broadcasting rules, CBS must televise all of its assigned games in the home market of the visiting team (and, if it is sold out, the city where the game is being played) in its entirety. If a game is non-competitive, the network may switch all but the two home markets to another game. If the home team's game is blacked out, the local CBS affiliate is not allowed to replace it with another game. From 1970 to 1993, CBS exclusively covered games involving only NFC opponents and interconference games in which the road team was a member of the NFC. From 1998 to 2013, CBS exclusively broadcast AFC-only games and interconference games featuring an AFC road team. Since the 2014 season, while AFC-only games still form the bulk of CBS's coverage, the league reserves the right to move games between CBS and Fox regardless of conference affiliation to maximize viewership – for example, high-profile NFC matchups that would be relegated to regional coverage because they occur during Fox's singleheader week can be moved to CBS' afternoon window. Local preseason television coverage Since CBS re-obtained the NFL broadcast rights in 1998, a number of the network's local stations have televised preseason football games, mostly including the network's graphics and production that viewers would normally see during regular season national/regional broadcasts. A number of NFL teams and their broadcasting departments have teamed up with CBS Sports to produce games; , these teams include the New York Jets (WCBS-TV in New York City), Los Angeles Chargers (KCBS-TV in Los Angeles) and Green Bay Packers (WGBA-TV in Green Bay and co-flagship WTMJ-TV in Milwaukee; since former CBS O&O WFRV-TV in Green Bay lost the local rights to the preseason games, Packers coverage on WGBA and WTMJ currently uses