[Steamer18] “How does CNN and other news channels get the scrolling small text at the bootom to look so sharp? I need to take text that looks good on a computer monitor and send it through a scan converter and have it look good on the air.”
They don’t use a “scan converter” to do this.
Its actually a “Character Generator” unit.
CG’s can be configured as a video unit (“black box”) that connects to a standard computer (with proper software) and that actually generates video text (does not “convert” a computer image) with the proper format to key correctly and legibly over other video.
Or it can be a self-contained, stand-alone CG unit with its own keyboard and other input devices that generates the entire text and background and keys it over the running video.