Fair warning, this TV rip is rather poor.
This looks like a segment within プリン・ス called “Dolce: Happy Sweet Talk Bar” where a guest artist comes in, fawns over some sort of candy and talks about their newest release. This week on Dolce is KOTOKO, promoting BLAZE and eating “Wonderful Delicious Golden Special.” But you didn’t watch this to hear KOTOKO say “ah, oishii desu sugoi” right? Later in the clip they show part of the BLAZE PV, but that’ll be finally released within the next day or two. (CDJapan already has it on hand, to give you an idea.)
What’s really interesting is at about 3:53, they show a video clip of “Oto no Nai Yozora Ni” even though there was never any announcement that IKU made a PV for the single. As far as I know, the PV will not be released on the single. As for the song, it is unmistakably I’ve and quite pretty, reminiscent of many of I’ve’s softer eroge themes, most recently “For our days.” I’m looking forward to it and really looking forward to what they’re going to do with the PV.
UPDATE: Nicovideo also has a preview for the KimiAru PS2 game theme “Joushiki! Butler Koushinkyoku” (常識！バトラー行進曲) which sounds like a radio rip. Can’t say I’m anywhere nearly as impressed with this one. Sounds fun, but not really all that satisfying.
EDIT: MP3 file of Butler Koushinkyoku (short). If it wasn’t so obviously KOTOKO, I would have swore it wasn’t I’ve at all.