On a slight tangent: some TV sets that had two or more levels of features, like PIP and multi-PIP, actually were built with the hardware capable of the high level features, but it was disabled in firmware in the less expensive model. In some cases, if you knew the secret remote control code (may have required a special servicing remote), you could enable the high level features on a less expensive set.
__________________
www.bretl.com
Old TV literature, New York World's Fair, and other miscellany
|