Two apps — one focused on live streaming, the other on short-form highlights and schedules and results — will be available to mobile and tablet users.

•  NBC Sports Network: The cable channel, previously known as “Versus” until Jan. 1, will offer 292 1/2 hours of coverage of U.S. team sports, generally from 4 a.m. to 8 p.m., which covers the live Olympic day in London. The most prominent of the network’s three hosts: former ESPN personality Michelle Beadle, who handles overnights and mornings.

•  MSNBC: Will serve up 155 1/2 hours of long-form programming of 20 sports, including badminton, basketball, soccer and wrestling, from 9 a.m. to 6 p.m. on weekdays, longer on weekends. Golf Channel’s Kelly Tilghman anchors.

•  CNBC: Will air 73 hours of boxing, including the debut of women’s boxing, from 5 p.m. to 8 p.m. daily, with longtime Los Angeles sportscaster Fred Roggin anchoring.

•  Bravo: Will carry 56 hours of tennis from early mornings to midafternoons. Pat O’Brien was taken out of mothballs to host.

•  Extras: Many cable, satellite and telecommunications providers will provide two specialty channels (one for men’s and women’s basketball and another for soccer, totaling 770 hours), as well as 242 hours of general Olympic coverage in 3-D.

•  Telemundo: Its 173 hours will focus primarily on boxing, swimming, basketball and soccer. Popular soccer announcer Andres Cantor anchors.

•  Final note: NBCOlympics.com will list which sports are available on what channels, and NBC’s cable channels promise to run that information on a scroll.