Black bars on TV screen

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Good Samaritan

Why do I get black bars on SD channels when watching Optik TV?

Ambassador

I would suggest to check the aspect ratio, to see if the digital box is set to HD or SD mode. You can also go into the Option and change the zoom settings.

Friendly Neighbour

Nah, 

 

Ill use CBC as an example,.

 

CBC is broadcast on SD ch 3 or HD on Ch 602

 

CBC only broadcasts in High definition...

 

consequently if your box in in HD mode,  (and lets face it, why wouldnt it be!!) than CBC fills the screen in HD but in SD ch3 it adds the bars to the top and bottom, 

 

if your watching a SD show on a HD channel this effects appears on the sides. Its purely how the signal is broadcast!