Are sitcom titles italicized or underlined?

Yes, usually in italics if typed on computer, underlined if handwritten.

When it comes to indicating titles, such as sitcom titles, the general rule is to use italics rather than underlining. Italicizing titles is the preferred method in most cases, including books, movies, TV shows, and even individual episodes of a TV series. Italicizing helps set the title apart from the surrounding text and makes it visually distinct. Underlining titles used to be a common practice before the advent of word processors, as typewriters didn't have the capability to produce italics. However, with the availability of italics in modern writing software, underlining is now considered outdated. Therefore, it is recommended to use italics when writing or typing the title of a sitcom, unless specifically instructed otherwise by a particular style guide or formatting guidelines.