Several smaller firms had tried to produce and sell frozen dinners earlier, but the first manufacturer who achieved success was Swanson. The first Swanson’s was timed to Thanksgiving and consisted of turkey, cornbread dressing, frozen peas and sweet potatoes packaged in a tray. This type of packaging resembled that of airline food service. As to the name "TV dinner", it comes from the form of the tray that resembled a TV set.

Have you ever tried this type of frozen food?

More Info: en.wikipedia.org