I am doing this for a project and would like to know what the main language devices used in this video are. Thanks
The device used in this video is satire/parody.
The few seconds use sexual inuendo.
The term sexual innuendo has acquired a specific meaning, namely that of a "risqué" double entendre by playing on a possibly sexual interpretation of an otherwise innocent uttering. For example: "We need to go deeper" can be seen as both a request for further inquiry on any given issue or a request to go deeper into an orifice. Alternatively the simple changing of the pronunciation of a word can be used to make it sound vulgar e.g. innuendo to "in-your-endo".
The type of innuendo in your video is not subtle at all.
"...thrusting into the future, again and again. Pounding the future, making the future beg for it."
Next is a parody of Scientology (with a bit if innuendo there, too.)
"Spacestar Ordering is based on the twin scientific principles of star maps and wishy-thinking." (Note wishy-thinking is referred to as scientific.)
Then there's a bit of slapstick, and base humor. I didn't finish it.
It all falls under what can be broadly called comedy.
The best part of this is that I never realized there was another season of the IT Crowd available.