Geraldo Rivera was hosting live coverage on Fox news. On CNN, Don Lemon anchored and MSNBC's David Shuster was in to anchor their coverage.

Now it's the Senate's turn.

See the full list of who's on what show over at FishbowlDC where the Sunday Show Preview is posted most Fridays.

Last night's show featured several reports on the Ft. Hood massacre as well as Diane Sawyer's interview with Rihanna, speaking for the first time about being attacked by her then-boyfriend, singer Chris Brown last February.

"20/20" won its time period in Total Viewers (8.2M) and A18-49 (2.7 rating/9 share). The Elizabeth Vargas-hosted show was also Friday's #1 TV show across each of the key demos: A18-34 (2.3/9), A18-49 (2.7/9) and A25-54 (3.1/9).

This was the show's biggest audience in more than 7 months and its best A18-34 rating in almost 3 years -- since Dec. 1, 2006.

Tonight at 8pmET, CNN premieres a Special Investigation into the Ft. Hood massacre. The one-hour live special is anchored by Don Lemon, with on-site reporting from Ft. Hood by CNN national correspondent David Mattingly and CNN investigative correspondent Drew Griffin.

"We did 5 million viewers at 8 O'Clock, wiped out CNN and MSNBC, wiped them off the face of the earth. The guard has changed in this country. The media guard has changed. And you know why people came in here, because they knew they were going to get an honest story. They weren't going to get spin that Hasan is some kind of post-traumatic syndrome victim. Some kind of victim of a terrible public policy gone awry. They're not going to get that..... I almost said a bad word. They're not going to get that garbage here."

O'Reilly's guest Bernie Goldberg also gave a new name to the mainstream media:

"The congressman is always welcome on the show," said Shuster. "We always appreciate hearing his point of view, it's a feisty one and that's what we like around here."

CNBC's David Faber reports on the impending acquisition of his network's parent company. "General Electric and Comcast are now expected to announce a deal over GE's NBC Universal unit on Nov. 16, not next week as originally thought," Faber writes on CNBC.com. GE will shed 51% of NBC Universal to Comcast and hold the remaining 49%.

> More: Tony Mortarulo of Scotch Plains, NJ is Williams' real-life uncle.

Between 3pmET and 7pmET, Fox News averaged 2.60M Total Viewers and 627K in A25-54 viewers coming in first of the three cable news networks, and adding viewers with each subsequent hour. CNN averaged 1.33M Total Viewers and 371K in the demo, seeing some drop-off at 6pmET. MSNBC averaged 624K Total Viewers and 196K in the demo, like FOX adding viewers with each hour.

> More: The Fox News dominance of the story was even more profound in primetime, as the network averaged 3.24M Total Viewers between 8pmET and MidnightET, with Bill O'Reilly drawing 4.995 million Total Viewers at 8pmET (by comparison NBC's "Parks & Recreation" at 8:30 averaged 4.935M).

Fox News beat the combined Total Viewer averages of CNN (1.835M) and MSNBC (955K) from 8pmET-Midnight.

The other "In Session" host is Ryan Smith who has appeared as a legal commentator on many networks. He specializes in entertainment law and hosted a show on BET called "My Two Cents."

The new "In Session" will feature reports from Beth Karas, who has been with the network since 1994.

In Session has also named three contributors: Mike Brooks, who will be the network's law enforcement analyst, Midwin Charles and Sunny Hostin.

truTV remains based in New York but the daytime production "In Session," which airs from 9amET-3pmET is shifting from studios in New York to studios in Atlanta. The production team in Atlanta is part of HLN.

Bob Woodruff, Terry Moran and Ryan Owens will report from Texas on the investigation, the victims and the heroic first responders. Brian Ross will report on what is known about the alleged shooter and his motives. Martha Raddatz and Bill Weir will contribute reporting on the impact on the US military.

In addition, Charlie Gibson will have an exclusive interview with Army Chief of Staff General George Casey Jr. and his wife, Sheila.

Last night on the broadcast, Gibson reflected on his time in the military, discussing the location of the massacre with correspondent John Quinones: "I go back to my time in the military, John. This is a processing center. And I remember, we used to line up to get shots and whatever just before we were about to do anything."

ABC's Jeffrey Kofman will also be reporting live form Orlando on the mass shooting there.