I noticed that aswell. Its a pain, but their listings haven't been that accurate recently anyway.
If you go to this site
http://www.goalzz.com/main.aspx?region=-2 they have the listings for ART right up until the end of March, unlike LJ's site.
If you also look on the left of the site, and click on
TODAY'S MATCHES, you can then go to any date you like and get the days lististings, and it tells you what games are on what channel.
I also noticed this site, had February's listings before ART had put them on their site.
Anyway have a look and let me know what you think!!