Here are converter boxes ,
http://forum.tvfool.com/showthread.php?t=380 . . By Googling the Tv stations call signs I found that , KIMT 42 is , CBS , MyNetwork , Local Weather . KYIN-DT 18 is PBS . KTTC-DT 10 is , NBC , The CW . KAAL-DT 36 is ABC . KSMQ-DT 20 is PBS . KXLT-DT 46 is , FOX , MeTV. Rescan for digital channels from time to time because new digital channels can come on the air without notice.