|Season 1, Episode 1|
|Air date||September 17, 1964|
|Written by||Sol Saks|
|Directed by||William Asher|
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"Be It Ever So Mortgaged"
Darrin doesn't know that Samantha is of all things, a witch. On their wedding night, Samantha's mother, Endora a witch of course, visits her daughter. Regretting that their daughter has married an "ordinary mortal" she is bent on breaking up the marriage. After pleading with her mother not to interfere, Samantha decides to tell her husband that he has unknowingly married a witch. To convince Darrin of her magic powers, Samantha performs a series of tricks. Darrin makes her promise never to practice her witchcraft again.
Sheila, a former girl friend of Darrin's, invites the newlyweds to a dinner party. She makes every effort to embarrass Samantha before the guests. After enduring Sheila's snubs and insults, Samantha cannot resist evening the score. She employs her extraordinary powers to humiliate Sheila. Later, at home, Darrin rebukes his wife but admits Sheila deserved the tricks played on her.
- Rehearsals for the pilot were supposed to begin November 22, 1963. However, the rehearsal was postponed because of the assassination of President Kennedy.
- Samantha was named Cassandra in the original draft of the pilot.
- Dick Sargent successfully auditioned as the original Darrin, but he was under contract at the time. He appeared as a regular on Broadside, the studio's spin-off of McHale's Navy.
- Originally in the script Endora was not named, but was called "Mother" when spoken to.
- Originally in the script, Darrin's last name was Douglas.
- The role of Samantha was originally offered to Tammy Grimes.
- This episode was completed on December 9, 1963.
- The title alludes to the traditional marriage vows.
- This episode marks the first appearances of Samanta, Darrin and Endora.
- This is the first and only time that Darrin's nameplate lists him as a vice president. After this episode and until season eight (when only his name is used on the nameplate) his nameplate lists him as account executive.
- This is the only time that Endora calls warlocks male witches.
- This is the only time that window opens for Endora to come into the room.