DTV timetable survey
http://www.industryclick.com/magazinearticle.asp?magazineid=158&releaseid=6812&magazinearticleid=114266&siteid=15#SCRI
http://www.industryclick.com/magazinearticle.asp?magazineid=158&releaseid=6812&magazinearticleid=114266&siteid=15#SCRI