Doubleheader allotments were often assigned with restrictions because of other network commitments. This happened during Finals Sunday of the U.S. Open tennis championships (September) (CBS, week 1 1976, '82, '85-'87, '89-'90, '99 and again 2001–2014; week 2 1979-81, '83-'84, '88, '91-'93, '98, '00), or Major League Baseball playoffs in October (NBC, typically during League Championship Series from 1976 to 1989, and again in 1996 and 1997, World Series 1978 to 1984, when Sunday games were afternoon games, and CBS, League Championship Series, 1990 to 1993). During these weeks, the restricted conference's teams in the Mountain and Pacific time zones could not play at home during the weekend in question, unless they either hosted an interconference game, or were scheduled in prime time (regardless of opponent). The rule was effectively eliminated by the new cross-flex rule in 2014, meaning the NFL could apply the new rule and assign games that would be on the restricted network to the other network. In 1991 (Charleston, South Carolina market) and 1995 (Rochester, New York market), NBC did not allow their games to be played in the early slot (1:00 p.m. ET) in order to cover the final day of matches in golf's Ryder Cup (no restrictions in 1993 because the matches would end before 5:30 p.m. local time, or 12:30 p.m. ET).