Found a Texas Instruments TI99/4A

[OvenMaster]

In 1982 I paid $1k for one of those and hooked it up to a 12" Zenith B/W portable TV. I managed to write some simple games and a utility program to tune pianos. They actually sold but not enough to cover the cost of the computer, never mind the advertising.

With only 64KB of memory to work with, you learn early to keep out as much bloat as possible when coding!