“A Cleveland Brown Christmas” was seen by 6.52 million viewers.

This episode was originally titled “It's a Wonderful Lie”

During the intro, one of the title cards shows the character “Meg Griffin” from “Family Guy” getting pelted with snowballs by the Brown family.

The song that accompanies the opening title cards sung by Cleveland is of course, Here Comes Santa Claus (Right Down Santa Claus Lane) written by Gene Autry and Oakley Haldeman.

While shopping for a Christmas tree, Cleveland apparently chooses the correct tree by singing the 1992 Sir Mix-A-Lot song, Baby Got Back

Cleveland: Suck on that Wayne Brady

Cleveland mentions actor, comedian, one time talk show host and current host of the game show, Let's Make A Deal, Wayne Brady (1972-)

Cleveland runs into actor Adrian Grenier (1976-) and mentions his HBO show Entourage (2004-2011)

Herbert sings the classic Christmas carol, O Holy Night composed by Adolphe Adam in 1847 to the French poem "Minuit, chrétiens" (Midnight, Christians) by Placide Cappeau (1808–1877)

Roberta mentions former talk show host & model Tyra Banks (1973-)

Roberta: The Gayle to her Oprah

Roberta suggests her video will be noticed by Tyra Banks and she will become best friends and her sidekick, the same way Gayle King (1954-) is best friends with former talk show host Oprah Winfrey (1954-)

The Michael Vick 2007 case of illegal dog fighting is mentioned in this episode.
He was found guilty and sentenced to 23 months in prison, three years probation following release; (State) fine and three-year suspended prison sentence upon condition of good behavior for 4 years beginning November 2008
He was released on July 20, 2009

The Kevin James 2009 comedy Paul Blart: Mall Cop is mentioned in this episode

Wally Farquhare and The Fluffers start off singing Angels We Have Heard on High and then go into the 1982 hit Gloria sung by Laurie Brannigan (1957-)

Holt: Just like Brody Jenner drinks

Holt mentions the son of Olympic decathlete Bruce Jenner and his former wife Linda Thompson, Brody Jenner (1983-). His claim to fame is appearing on the 'reality' show Keeping Up With the Kardashians

The classic Christmas Carol Sleigh Ride is sung in this episode

Robert: What the El DeBarge are you doing here

Robert mentions one-hit-wonder El DeBarge (1961-), best known for his song Who's Johnny, the theme song for the 1986 movie Short Circuit

The Beach Boys' Brian Wilson (1942-) is mentioned in this episode.

The Beach Boys' 1963 Little Deuce Coupe is mentioned in this episode.

As mentioned, Cleveland gives Junior a photo of Whitman Mayo (1930-2001), who played Grady Wilson from the Sanford & Son (1972-1977)

At the end of the show, The Browns and Robert sing the classic Christmas carol, Let It Snow! Let It Snow! Let It Snow! which was written by lyricist Sammy Cahn and composer Jule Styne in 1945.

In a Deleted Scene from the Season One DVD set, Cleveland Junior mentions he collects photos of black men.
Two in his collection are American poet, social activist, novelist, playwright, and columnist Langston Hughes (1902-1967) & actor, comedian Tim Meadows (1961-)

Mike Henry's “Family Guy” character, “Herbert” makes his first speaking appearance on “The Cleveland Show” in this episode since his quick cameo at Cleveland and Donna's wedding in the Pilot episode