What is a word for One television show in series that starts and ends with the same letter?

There isn't a specific word for a single television show in a series that starts and ends with the same letter. It's a unique characteristic of a show, but it doesn't have a common term.

You could describe it as:

* A show with an alliterative title

* A show with a beginning and end letter that match

* A show with a title that has symmetrical letters

Ultimately, the best way to describe it would depend on the context and how you want to emphasize the unique characteristic.