Mister Ed

A horse is a horse, of course, of course.
And no one can talk to a horse, of course.
That is, of course
unless the horse
is the famous Mr. Ed!

A 1960s Sitcom about Wilbur Post and his wife Carol, and Wilbur's talking horse Mr. Ed. Mr. Ed was a normal Palomino in most respects, other than the fact that he could talk and read, and was fairly intelligent. He only ever spoke to Wilbur though, which led to many awkward situations.

It's also possible to interpret Mister Ed as the deranged hallucinations of a man who owned a completely normal horse.

A pilot was filmed for a Revival in 2004, but never aired.

Tropes used in Mister Ed include:

Amusing Alien: Mr. Ed, naturally.
Beta Couple: The next-door Addisons, who unlike many Beta Couples, seemed to actively dislike each other.
Channel Hop: Rather unusually, from first-run syndication (season 1) to CBS (seasons 2-6).
Character as Himself: Ed is billed "as himself" in the credits.
Christmas Episode^[context?]
Deadpan Snarker: Addison, who may be one of the most deadpan of all snarkers in black-and-white television.
Easy Amnesia^[context?]
Everybody Owns a Studebaker: Studebaker was the primary sponsor of the show through 1963-64. Studebaker got Product Placement in the show, and Mister Ed and Wilbur even did some Studebaker commercials.
- Ironically, by the time the show's target demographic was old enough to drive, Studebaker was out of business (having built their last cars in 1966).
Expository Theme Tune: See the page quote. There's a bridge and one more verse, but really, that first verse is all the exposition you need. It's outright wrong on one point, though -- Ed is anything but famous, and wants to keep it that way.
Fantastic Comedy
Fetish Fuel Station Attendant: Connie Hines as Wilbur's wife Carol. One episode had her doing alterations on a dress and she had the skirt hiked up to her thighs.
Intellectual Animal
Not-So-Imaginary Friend
Spirit Advisor^[context?]
Wunza Plot: One's an ordinary surburban fella. One's a talking horse. They... well, they don't fight crime, that's for sure.

Wiiiiiiilllllburrrrrrrr!