Before 知らないほうが幸せだった事実 (It’s better not to know) became a corner of HnA, it’s actually a one time only show hosted by Aiba. Since it’s a late night show, we can see him talking about things we can’t really see now.
When the Daibutsu (the co-host) is introducing the guest Marie:
When they’re introducing bras for men:
And then they let Aiba try on the bra