Showtime is a premium cable channel that shows both original programming and Hollywood movies, and with On Demand, you can watch Showtime programming whenever you want. As of 2011, shows like "Nurse Jackie" and "Californication," as well as movies featured in the Showtime line-up, are available through On Demand. Watching Showtime On Demand just requires a few clicks with your cable box's remote control.
Turn on your television and your cable box.
Press the "On Demand" button on your remote control to go to the On Demand menu.
Highlight "Premium Channels" and press the "Enter" or "OK" button.
Highlight "Showtime" and press the "Enter" or "OK" button.
Choose from the options on the menu, such as movies or original programming. When you have highlighted the movie or television episode that you want to watch, follow the on-screen instructions to play, pause, rewind and fast-forward the program as you wish.