Two weeks until Christmas and television is celebrating the holidays with The iHeartRadio Jingle Ball and another week of competition for ABC's "The Great Christmas Light Fight" and "The Great Holiday Baking Show."

NBC kicks off the week with Adele singing at Radio City Music Hall in New York City. Then on Saturday, Tina Fey and Amy Poehler return to "Saturday Night Live" to co-host the Christmas episode with musical guest, Bruce Springsteen and the E Street Band.

The most popular shows on CBS are celebrating with their own Christmas-themed episodes and the special "A Home for the Holidays," which gives adopted kids the opportunity to meets their favorite recording artists.

Hallmark premieres two new original movies this weekend including Mariah Carey's "A Christmas Melody" and her special "Mariah Carey's Merriest Christmas." USA Network also adds its own Christmas original movie, "Santa's Little Helper."

Click here for ABC Family's "25 Days of Christmas" and click here for Hallmark Channel's Countdown to Christmas lineup.

Monday, Dec. 14

- "The Great Christmas Light Fight at 8 p.m. on ABC

- "Scorpion" (holiday episode) at 9 p.m. on CBS

- "Jane the Virgin" (holiday episode) at 9 p.m. on The CW

- "The Great Holiday Baking Show" at 10 p.m. on ABC

- "NCIS: Los Angeles" at 10 p.m. on CBS

- "Adele Live in New York City" at 10 p.m. on NBC

Tuesday, Dec. 15

- "NCIS" (holiday episode) at 8 p.m. on CBS

- "Toy Story That Time Forgot" (rerun) at 8 p.m. on ABC

- "Shrek the Halls" (rerun) at 8:30 p.m. on ABC

- "NCIS: New Orleans" (holiday episode) at 9 p.m. on CBS

Wednesday, Dec. 16

- "Elf: Buddy's Musical Christmas" (rerun) at 8 p.m. on ABC

- "Santas in the Barn" at 8 p.m. on truTV

- "Nashville: On the Record" at 10 p.m. on ABC

- "Christmas Through the Decades: The '90s" at 10 p.m. on History

Thursday, Dec. 17

- "How Murray Saved Christmas" (rerun) at 8 p.m. on NBC

- "American Country Countdown's Top 10 Stories of 2015" at 8 p.m. on Fox

- "The iHeartRadio Jingle Ball 2015" at 8 p.m. on The CW

- "Santas in the Barn" at 8 p.m. on truTV

- "Life in Pieces" (holiday episode) at 8:30 p.m. on CBS

- "Mom" (holiday episode) at 9 p.m. on CBS

- "Kelly Clarkson's Cautionary Christmas Music Tale" (rerun) at 9 p.m. on NBC

- "Barbara Walters Presents: The 10 Most Fascinating People of 2015" at 9:30 p.m. on ABC

- "I Love Kelly Pickler" (holiday episode) at 10 p.m. on CMT

Friday, Dec. 18

- "Frosty the Snowman" (rerun) at 8 p.m. on CBS

- "Grandma Got Run Over by a Reindeer" (rerun) at 8 p.m. on The CW

- "Frosty Returns" (rerun) at 8:30 p.m. on CBS

- "Yes, Virginia" (rerun) at 8:30 p.m. on CBS

- "A Home for the Holidays" at 9 p.m. on CBS

Saturday, Dec. 19

- "A Christmas Melody" at 8 p.m. on Hallmark Channel

- "The Spirit of Christmas" at 8 p.m. on Hallmark Channel

- "Kirby Buckets" at 10 p.m. on Disney Channel

- "Mariah Carey's Merriest Christmas" at 10 p.m. on Hallmark Channel

- "Saturday Night Live" (holiday episode) at 11:30 p.m. on NBC

Sunday, Dec. 20

- "The Sound of Music: Sing-a-Long" at 8 p.m. on ABC

- "Christmas Land" at 8 p.m. on Hallmark Channel

- "Santa's Little Helper" at 8 p.m. on USA Network

- "The Muppet Christmas Carol" (rerun) at 10 p.m. on WGN America