I'm also having the same problem with some channels not having data for today and some of tomorrow etc (Fox Sports - both, MTV are among them). So not the same set as woz_331. Have set a daily call about an hour ago but it hasn't worked (when the time was around 19:50):

53 19 * * * /var/hack/daily_call.tcl > /var/log/daily_call &

It executed as the timestamp on the /var/log/daily_call file indicated. btw, is it normal for this to write out a zero byte file? It's been writing out a zero byte file on each run since I set it up last year and the guide generally *does* get updated.

I have a daily call for 3pm daily permanently in my crontab and it has worked fine without this problem for a few months. Thanks for any help anyone can offer.