MAJOR thanks to ErnieYoung who provided the raw for me and farsju who kindly helped me with translations.
It's not the full episode. As denoted by the title, I only subbed the part that featured Imai Tsubasa as guest. He is part of the Jpop duo Tackey & Tsubasa under Johnny's Entertainment. He has appeared on Downtown's Hey! Hey! Hey! a number of times to play games. He has always performed poorly in those games, which is why they joke that he's the "Tsubasa who can't do anything."
Downtown talk quite a bit and lighten the mood, so there's a bit of jokes from them if you're only interested in that. Otherwise, you can hear a bit about Johnny Kitagawa and Johnny's Entertainment from "behind the scenes".