J jckm78 SatelliteGuys Guru Original poster Apr 21, 2006 136 0 Apr 25, 2006 #1 I install a cm 4228 and connect to a directv hd receiver but the ota locals have a black and white line on the top of my 42" flat screen that flickers. The other HD channels from Dish are normal. What is the cause of that line?
I install a cm 4228 and connect to a directv hd receiver but the ota locals have a black and white line on the top of my 42" flat screen that flickers. The other HD channels from Dish are normal. What is the cause of that line?
M mdovell SatelliteGuys Pro Jul 8, 2005 226 0 Apr 26, 2006 #2 Maybe it's possible that it's vbi data http://www.answers.com/topic/vertical-blanking-interval Back in the day you could find this by adjusting the Vhold on older tv's. It was the "stuff" on the top or the bottom after the picture screen. VBI is used for things like closed captioning, TVguide data, test patterns and I hear it might be used in europe for teletext.
Maybe it's possible that it's vbi data http://www.answers.com/topic/vertical-blanking-interval Back in the day you could find this by adjusting the Vhold on older tv's. It was the "stuff" on the top or the bottom after the picture screen. VBI is used for things like closed captioning, TVguide data, test patterns and I hear it might be used in europe for teletext.
