a few cases, via simulcasts with ABC-, NBC- and CBS-affiliated stations that operate a Fox affiliate, this is often part of a morning news block that runs for four to six hours on average). Fox has fewer stations that have an independent news operation than those of ABC, NBC and CBS; , 70 of Fox's 236 stations (including all 18 owned-and-operated stations) maintain in-house news departments (compared to roughly – of the stations of each of the three other major broadcast networks, whose newscasts are either produced in-house or in conjunction with another station). WJW (channel 8) in Cleveland (which was owned by the network from 1997 to 2008) and WXIN (channel 59) in Indianapolis have the highest weekly total of news programming hours among Fox's stations, at 65½ hours. Most Fox stations that run a news operation utilize a newscast-intensive scheduling format that is very similar to an ABC-, NBC-, or CBS-affiliated station which in many cases, may incorporate midday or early-evening newscasts, the latter of which is often extended by a half-hour to compete with the national evening newscasts provided by the "Big Three" networks; some Fox stations except for those owned by Fox Television Stations and those formerly owned by Tribune Broadcasting air their early-evening newscasts only on Monday through Friday nights, due to frequent sports event overruns into that daypart on weekends. The first Fox station to adopt such a scheduling format was WSVN in Miami; upon affiliating with the network in January 1989, WSVN retained its existing morning, midday and early evening newscasts, while moving its late newscast from 11:00 p.m. to 10:00 p.m. and expanding it to one hour (the station later relaunched an 11:00 p.m. newscast in 1995), and expanding its weekday morning newscast by two hours. This type of format was later adopted by the former major network stations that switched to Fox between 1994 and 1996, especially those affected by New World and Burnham Broadcasting affiliation deals. Many Fox stations with upstart news departments often do not run a full slate of newscasts initially, usually carrying only a prime time newscast at first, before gradually adding other newscasts over time. In many small to mid-sized markets (largely those ranked outside the 50 largest Nielsen-designated television markets), production of the local Fox affiliate's newscasts is outsourced to an NBC, ABC, or CBS station – either due to insufficient funds or studio space