As advertised in National Geographic, March 1950
And here's a sample of what you'd be able to watch on a TV with a 'superpowered chassis'.
The Bureau of Labor Statistics CPI Inflation Calculator notes $495 in 1950 has the same buying power as $4,884.34 today.
Comparing the inflated cost of living today from 1950 to 2014: How declining purchasing power has hurt the middle class since 1950. (mybudget360.com, 2/23/2014)