How do you say in French I watched the television?

There are a few ways to say "I watched television" in French, depending on the context and level of formality:

Formal:

* J'ai regardé la télévision. (This is the most common and neutral way to say it)

Informal:

* J'ai regardé la télé. (This is a more casual way to say it)

* J'ai maté la télé. (This is a very informal and colloquial way to say it, similar to "I watched TV" in English)

To emphasize that you watched a specific program, you would add the name of the program after "la télé" or "la télévision."

For example:

* J'ai regardé "Le grand journal" à la télé. (I watched "Le grand journal" on TV)

You can also use the verb "suivre" (to follow) to indicate that you watched a particular program or event.

For example:

* J'ai suivi le match à la télévision. (I watched the match on television)