Not sure. I know a few times in the past year I've had 24-5 go blank too but it did still show a full signal reading - just no pic or sound. One time it lasted almost a week.
I got the following email today from VTPBS and it may have something to do with what's happening.
Greetings, Digital Viewers and Friends,
Just want to let you know that new FCC policy requires TV stations to
identify their digital channels with the same numbers as their analog
channels. VPT will make these changes Sept. 20:
Ascutney's WVTA Digital ch-24 will show up as ch-41 on digital set top
Rutland's WVER Digital ch-9 will show up as ch-28 on digital set top
If you have any technical questions, please get in touch with Rob
Thanks for watching, and if you're not receiving our monthly guide (analog
programs only so far), just let me know where to mail it, and I'll sign
you up for a complimentary year's membership.
Community Relations Director
Vermont Public Television (PBS)
204 Ethan Allen Ave.
Colchester, VT 05446
1-800-639-7811 ext. 8059