Doug -
Analog 24 is W24AJ from Aurora, a translator for WSPY-LP, supposedly on analog 30.
42 -
http://www.kbctvusa.com/
61 -
http://en.wikipedia.org/wiki/WCHU-LP
WCIU was simulcast on 23 very soon after the shutoff; I'll have to look at the video that I took and see when it was.
Dr. Ido -
I recorded the WCIU shutdown and tribute, but like Doug, missed the first few minutes. I've uploaded the last 4 minutes (the actual transmitter shutdown) to YouTube. WCIU is supposed to post the video on their website, but I haven't seen it yet.
http://www.youtube.com/watch?v=2SbizfeDRYQ
Sorry for the video quality; I'm working on cleaning it up a little.
-Jim