Reference

Here are some plot details of episodes aired in December 1968:

1. Star Trek Episode - "The Empath": Aired on December 6, 1968. In this episode, Kirk, Spock, and McCoy are trapped in an alien laboratory where they meet an empath and become involved in a series of experiments. Source

2. Star Trek Episode - "Elaan of Troyius": Aired on December 20, 1968. The plot involves the Klingons interfering with the Enterprise's mission to transport an unwilling royal bride named Elaan to her wedding. Source

3. Hallmark Hall Of Fame - "Pinocchio": Aired on December 8, 1968. This is a 90-minute musical adaptation of the classic story by Carlo Collodi. Peter Noone stars as Pinocchio, and Burl Ives plays Mister Geppetto in this adaptation. It aired on NBC. Source

4. Sherlock Holmes Episode - "The Blue Carbuncle": Aired on December 23, 1968. This is a part of the British TV series starring Peter Cushing as Sherlock Holmes. The episode modifies the name of a character for humorous effect, maintaining Holmes's deduction prowess in a mystery revolving around a stolen gem. Source

5. "The Little Drummer Boy" TV Special: First televised on December 19, 1968, in Canada, followed by a U.S. release on NBC. This is a stop-motion special based on the song, featuring a story of a young drummer boy named Aaron, who plays his drum for Baby Jesus. Source

These episodes covered a variety of genres, from science fiction to adaptations of classic literature and holiday specials.