1985 RCA colortrak 2000

[Jeffhs]

Originally Posted by dishdude

What's LDR?

LDR is an abbreviation for Light Dependent Resistor. These were used in TVs of the '60s-'70s (Magnavox comes to mind, though other sets may have used them as well) to automatically adjust the brightness of the picture under various room lighting conditions. This feature was generally found in high-end Magnavox color sets, such as their fabulous 25" three-way entertainment center (TV, phono, AM-FM radio) of the mid-'60s, and a few standalone console TVs of the same vintage. It could be defeated by a switch if the user wanted to set brightness and/or contrast manually.

[dishdude]

Originally Posted by Jeffhs

LDR is an abbreviation for Light Dependent Resistor. These were used in TVs of the '60s-'70s (Magnavox comes to mind, though other sets may have used them as well) to automatically adjust the brightness of the picture under various room lighting conditions. This feature was generally found in high-end Magnavox color sets, such as their fabulous 25" three-way entertainment center (TV, phono, AM-FM radio) of the mid-'60s, and a few standalone console TVs of the same vintage. It could be defeated by a switch if the user wanted to set brightness and/or contrast manually.

Thanks My first Zenith had this...it was a menu option I could turn on and off called Light Sentry.

[Telecolor 3007]

The L.D.R. techonolgy is so old? I thought it was from the '90's.
Anyway, since I've seen the title I knew it was about an really wooooooooooow tv set!