8 TV series that had incredibly different pilot episodes

What would the island be like with no Mary Ann?

Image: Warner Bros.

Could you imagine a universe without Captain Kirk leading the Enterprise? Well, that version of Star Trek was once a reality that lived in the series' pilot episode. 

Before any network commits to a television series, pilot episodes are created as a preview to what the show will eventually look like. Sometimes, producers get everything right and the pilot episode airs as the first episode of the series. In other cases, several changes are made that make the pilot episode almost undistinguishable from the series it will eventually become.

These eight pilot episodes had different characters, different names and even different cast members. We're glad changes were made to these episodes, because who wants to watch Gilligan's Island without Mary Ann? It almost happened!

1. Gilligan's Island

The pilot for Gilligan's Island feels more like a knockoff than an early version of the iconic '60s sitcom. In the episode, "Marooned," Gilligan and the other castaways wake up to find themselves stranded on the uncharted isle. When Gilligan tries to help, he ends up causing more harm by goofing up. Sounds kind of familiar, right?

Here's where things differ: The Professor is played by John Gabriel; Ginger is a secretary played by Kit Smythe; Mary Ann is actually a character named Bunny, played by Nancy McCarthy.

2. Leave It to Beaver

The pilot episode for Leave It to Beaver originally aired on Studio 57 in 1957, several months before the series premiered. In "It's a Small World," Max Showalter played Ward Cleaver, and was replaced in the series by Hugh Beaumont. Jerry Mathers still played Beaver, but he had recently replaced Harry Shearer (The Simpsons), who appeared in the episode as Beaver's friend instead of the titular character. 

Image: NBCUniversal

3. Happy Days

The pilot episode for Happy Days, which was originally called "New Family in Town," was created in 1971, a full three years before the sitcom premiered. Originally, actor Harold Gould was tied to the role of Howard Cunningham and Chuck Cunningham was a series regular. 

When the network passed on the pilot, they recycled it on an episode of Love, American Style called "Love and the Television Set" in 1972. Two years later, they decided to turn the episode into a series. You can catch the first episode of Happy Days this Friday at 9PM | 8C on MeTV. 

4. The Munsters

The network shifted a lot of characters around to make The Munsters work for primetime. In the pilot episode, Grandpa Munster has a much more somber expression and Eddie was supposed to be a spoiled brat.

The network didn't like how those characters turned out, so they made Grandpa more comical, and completely replaced the original actor who played Eddie. Also, Yvonne De Carlo was nowhere to be found.  

Image: NBCUniversal

5. Star Trek

While the episode "Where No Man Has Gone Before" is regarded by some to be the pilot, it was in fact the second attempt at a pilot. Prior to that, there was "The Cage," which featured Jeffrey Hunter as Captain Pike leading the Enterprise. The network rejected it, ordered a second pilot episode, and only retained Leonard Nimoy.

6. Three's Company

The "company" would be a lot different if the network decided to keep the pilot episode of Three's Company. John Ritter was cast as the main character, but his name was David, not Jack. What's worse, he was going to live with two girls named Jenny and Samantha. Where were Janet and Chrissy? Who knows, but we're thankful they were added instead.

Also, let's take a moment to thank whoever decided to add lyrics to the show's theme song.

Image: FremantleMedia

7. All in the Family

Just like another groundbreaking TV show on this list, All in the Family took two tries before it became the series we know and love today. The first pilot was for a series titled Justice for All, which was originally intended as a vehicle for Jackie Gleason on ABC. Eventually, Carroll O'Connor was cast as Archie Bunker and the episode was filmed. 

ABC decided to shoot another pilot, Those Were the Days, yet ultimately decided to pass on the series to avoid controversy. CBS purchased the rights, changed the title again, and developed the series with the final cast in place. 

Image: Sony Pictures Television

8. Saved by the Bell

Before the kids at Bayside High became must-see TV on Saturday mornings, they attended John F. Kennedy Junior High in Good Morning, Miss Bliss. The pilot to that show also looked a lot different, with future Beverly Hills, 90210 star Brian Austin Green as one of the main characters and The Parent Trap's Hayley Mills as the teacher. 

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