David Lynch makes a brief appearance in the irreverent cartoon series.
The moment occurs in the episode 9 it's from the season 15 Series, entitled “How Griffin stole Christmas”, issued the 11 December of 2016. At the beginning of chapter, the family is watching television “How David Lynch Stole Christmas”: Lynch enters through which chimney Santa Claus and gives a thumbs a child. Dialogue is well:
David Lynch: Hello. I brought you a gift. It is a thumb. Do not look away, let fear cover you.
Boy: I do not get it.
David Lynch: That's the topic!
Behind this, Lynch asks the child a cup of coffee and as the child does not bring, it asks the future and the past.
It also includes a couple of references more Twin Peaks, we can see a picture with 2 mountains and a log on the chmenea. I leave you with the video (In English):