This program that is being talked about sounds similar to what WXIA/Atlanta did in the 80's and 90's called "Noonday" - half news and half morning-show type program.
Mostly, these are confined to local morning shows, which are officially news products despite the entertainment content (like the national shows). These shows try to book nationally-known guests, but always tend to book guests that might have won a contest or are performing at a big local event.
Also, some of these stations use their 12:30 shows for "pay for play"...where a portion of the show is reserved for paying for interview segements, and the other portion is just booked (WXIA's Atlanta and Company, which airs before the noon news, is one of these shows. It is hosted by former radio personalities, and has nothing to do with the news division). If the hosts are entirely different for this 12:30 show then from the noon news...it probably is.