The premises for variety shows can get pretty arcane, none more so than the one that anchors "Ochanoma no Shinjitsu: Moshikashite Watashi Dake? (The Truth in the Parlor: Am I the Only One?)" (TV Tokyo, Monday, 9 p.m.).

Hosts Yoshizumi Ishihara and Katsushige Nagashima entertain celebrities who relate customs and habits that seem to be limited to their own households.

This week, rocker Diamond Yukai talks about how important sunglasses are to a rock singer's image, and confesses to wearing his even when he goes to bed.