These shows are originals because Showtime commissioned or acquired them and had their premiere on the SkyShowtime service, but they are not available worldwide.
Showtime has produced original films under two titles: "Showtime Original Pictures" and "Showtime Original Pictures for All Ages" (originally "Showtime Original Pictures for Kids"), the latter of which are made-for-cable films targeted at families:
^"Highly Anticipated Return of "The Chi" Kicks Off Friday, May 10th" (Press release). Showtime. February 8, 2024. Retrieved February 9, 2024 – via The Futon Critic.
^Rice, Lynette (May 8, 2024). "'The Chi' Renewed For Seventh Season By Paramount+ With Showtime". Deadline Hollywood. Retrieved May 8, 2024.
^Tinoco, Armando; Cordero, Rosy (January 16, 2024). "'Yellowjackets' Season 3 Won't Be Premiering Until 2025". Deadline Hollywood. Retrieved January 16, 2024.
^White, Peter (February 22, 2022). "'Super Pumped' Renewed For Season 2 At Showtime; Anthology Series To Tackle Facebook As Network Starts Meta Battle With HBO". Deadline Hollywood. Retrieved May 10, 2022.
^"Season Four of "Couples Therapy" to Premiere Friday, May 31" (Press release). CBS. April 30, 2024 – via The Futon Critic.
^Goldbart, Max (February 5, 2024). "'Dreaming Whilst Black' Greenlit For Season 2 By BBC & Showtime". Deadline Hollywood. Retrieved February 5, 2024.
^Mitovich, Matt Webb (February 6, 2023). "Showtime, George Clooney to Adapt Hit Spy Drama Le Bureau des Légendes". TVLine. Retrieved February 6, 2023.
^Keslassy, Elsa (February 27, 2024). "Michael Fassbender in Talks to Star in George Clooney's Espionage Thriller Series 'The Department' (EXCLUSIVE)". Variety. Retrieved March 4, 2024.
^ a b c d eGoldberg, Lesley (February 6, 2023). "'Dexter,' 'Billions' Spinoffs in the Works as Showtime Doubles Down on Franchise Plan". The Hollywood Reporter. Retrieved February 6, 2023.
^Ausiello, Michael (February 6, 2023). "Dexter: Origins Prequel Spinoff Ordered to Series — Find Out What Age Dexter Will Be When Story Begins". TVLine. Retrieved February 7, 2023.
^Porter, Rick (May 31, 2022). "'Fleabag' Producers, Star Team for Showtime Comedy Series". The Hollywood Reporter. Retrieved June 1, 2022.
^Goldbart, Max (August 18, 2022). "'Entitled': Showtime & Channel 4 Comedy From 'Fleabag' Team Unveils Cast & Begins Production". Deadline Hollywood. Retrieved August 18, 2022.
^Cordero, Rosy (June 24, 2022). "Showtime & Bet Studios Developing Pilot 'The Book of Jose' from Fat Joe, Kenya Barris & Jorge Reyes". Deadline Hollywood. Retrieved April 7, 2023.
^Andreeva, Nellie (August 23, 2021). "Susannah Grant's Sex Trafficking Drama 'Coercion' Starring Sydney Chandler Gets Showtime Pilot Order". Deadline Hollywood. Retrieved August 24, 2021.
^Petski, Denise (August 1, 2022). "Nathan Min Comedy 'Mason' From 'Everything Everywhere All At Once' Team & Steven Yeun Gets Showtime Pilot Order". Deadline Hollywood. Retrieved August 1, 2022.
^Petski, Denise (October 18, 2022). "Uzo Aduba To Headline 'All Her Little Secrets' Limited Series Adaptation In Works At Showtime". Deadline Hollywood. Retrieved October 18, 2022.
^ a b c dIannucci, Rebecca (February 6, 2023). "Multiple Billions Spinoffs, Including Millions and Trillions Offshoots, in the Works at Paramount+". TVLine. Retrieved February 7, 2023.
^Petski, Denise; Andreeva, Nellie (January 10, 2022). "'Blocks': Bridget Moloney Comedy Based On Her Short In Works At Showtime With Matt Tolmach & Ben Sinclair As EPs". Deadline Hollywood. Retrieved August 2, 2022.
^Petski, Danielle (May 17, 2021). "Matt Barnes Semi-Autobiographical Comedy Series In Works At Showtime, Lionsgate". Deadline Hollywood. Retrieved June 7, 2023.
^Andreeva, Nellie (September 18, 2023). "'Jonah Kills' UK Comedy Pilot In Works At Showtime From Clem Garritty, Iain MacDonald & Jax Media". Deadline Hollywood. Retrieved September 18, 2023.
^Petski, Denise (January 19, 2022). "'Jumpmen' Drama From Sundance-Bound 'God's Country' Writer & Justin Hillian In Works At Showtime". Deadline Hollywood. Retrieved January 19, 2022.
^Andreeva, Nellie (March 23, 2023). "'The L Word: Generation Q' Canceled After 3 Seasons, New York-Set Reboot Of Original With Ilene Chaiken In Works At Showtime". Deadline Hollywood. Retrieved March 24, 2023.
^Otterson, Joe (September 24, 2021). "Patricia Arquette to Star in, Direct Showtime Limited Series 'Love Canal' From Colette Burson (EXCLUSIVE)". Variety.
^D'Alessandro, Anthony (July 20, 2022). "Showtime Developing One-Hour Drama 'Panda' From Eddie Huang". Deadline Hollywood. Retrieved July 20, 2022.
^Petski, Denise (June 4, 2021). "Robby Hoffman Comedy 'Rivkah' In Works At Showtime". Deadline Hollywood.
^Andreeva, Nellie (May 3, 2021). "'Scarface And The Untouchable' Series Adaptation In Works At Showtime From Ben Jacoby & Alex Kurtzman". Deadline Hollywood. Retrieved June 7, 2023.
^Andreeva, Nellie (March 24, 2021). "David Duchovny To Star In Series Adaptation Of His 'Truly Like Lightning' Book In Works At Showtime With 'The Peanut Butter Falcon' Filmmakers". Deadline Hollywood. Retrieved June 7, 2023.
^White, Peter (February 3, 2022). "Chace Crawford, Tony Romo & 'Yellowjackets' EP Drew Comins Line Up Football Drama At Showtime". Deadline Hollywood. Retrieved February 4, 2022.
^ a bAndreeva, Nellie (May 15, 2023). "'Nurse Jackie' & 'Weeds' Sequels In Works At Showtime With Original Stars". Deadline Hollywood. Retrieved May 15, 2023.
^Ausiello, Michael (February 6, 2023). "Trinity Killer-Centric Dexter Spinoff In the Works at Paramount+". TVLine. Retrieved February 7, 2023.
^Otterson, Joe (June 16, 2022). "Ethan Hawke to Star in Limited Series 'The Whites' in Development at Showtime". Variety. Retrieved August 2, 2022.