I found the news update from 6-7-2010 on the SRL website, stating ALTV was slated to leave on about 5-1 with Blue Highways. It was good while it lasted. Although I was watching it less in the past year, I really enjoyed ALTV over the years and will miss it.
It wasn't as good after it was sold last year programming wise, for my taste. Mission Imposssible was about all I tuned in for.