Black line at the top of screen? What is it??

[Penthode]

Originally Posted by Jeffhs

VITS are still used in broadcast TV today...

Alas. VITS is no longer broadcast. Analog TV broadcast included the vertical blanking interval to carry data such as VITS, Closed captions, Nielsen data etc. But DTV does not accommodate carriage of the VBI or vertical blanking interval. Only the active picture is broadcast with the ancilliary data carried as separate data packets ins the digital broadcast stream.

DTV receiver boxes and DVD players recreate VBI signals from the ancillary data. This is to provide a backward compatibility with older analog TV.

So we can now say V.I.T.S. - R.I.P.