This episode drew 8,474,000 viewers & was FOX's #2 show for the week

New Brian Singing
I don't like fancy learnin' books.
I don't like apple tarts.
I don't like cozy breakfast nooks.
I don't like modern arts.

Well I like farts,
Yes I like farts,
I like long farts short farts wet farts your farts, I like farts.
If you got hearts (Peter: Oh I got hearts)
Let's hear those farts (Peter: How do I start)

Well Peter I will help you get your fart to started.
{fart sounds}

Peter's flight via “The Greatest American Hero” is stopped when he hits a tree that's growing on an island in the middle of the lake.

However when Brian and then Joe swims out to rescue Peter, the island is nowhere to be seen.

The title 'The Man w/ Two Brians' is a take off of the title of the 1983 Steve Martin comedy 'The Man w/ Two Brains'

Peter, Brian, Joe, Glen & Cleveland watch and imitate the MTV show 'Jackass' (2000-2002) that spawned 2 movies all starring Johnny Knoxville

Peter: "I'm Peter Griffin and I am the Greatest American Hero"

'The Greatest American Hero' was a tv series from 1981-1983 that starred William Katt & Robert Culp. Peter wears the same costume worn by William Katt and even sings the series' theme song.

Carol Alt: "Is that the one with the fish"
Male Voice: "No that's American Boy"

Nod to Seth's other animated show 'American Dad'

Peter: "Now do your impression of Punky Brewster's father"
New Brian: "Punky, you have a dog named Brandon"

'Punky Brewster' a series from 1984-1988 starred Soleil Moon Frye.
New Brian imitates the character Henry Warnimont played by George Gaynes.

Peter: "Shatner singing Rocketman"

William Shatner performed a spoken word version of Elton John's 'Rocketman' at a 1978 SciFi awards show.

Peter: "Drunk Orsen Wells doing that commercial"

Reference to a real commercial Orsen Wells did for Paul Masson a French Champaign in which the outtakes reveal he was indeed drunk.

Peter: "Sylvester Stallone in that porno"

Sylvester Stallone's first acting job was the 1970 porn film 'Party At Kitty & Stud's'

Cleveland: "Sorry but there's a leash law in this neighborhood and you never who's watching"

Mumm-Raa, the main villain from the 80's cartoon 'Thundercats' (apparently) watches Brian go to the bathroom

Stewie reads Nancy Reagan's memoir My Turn

During karaoke, Peter is singing 'Everybody Hurts' by REM

Lois: "Rita Coolidge's less talented sister here"

Rita Coolidge (born May 1, 1945) is a Grammy Award-winning singer who's popularity peaked in the 70's/early 80's

Lois and New Brian karaoke song is 'Summer Nights' performed by John Travolta and Olivia Newton-John in 1978's movie 'Grease'

Family Guy breaks the fourth wall again with a comment about "aging supermodel" Carol Alt.
An elderly voice from another room calls to Carol telling her she's being mentioned twice on 'The Family Man' i.e. 'Family Guy'.

Stewie tries to annoy New Brian by deliberately mispronouncing the word Whip in Cool Whip, the same thing he did to Brian in 'Barely Legal'