I was an in home TV Technician (TV repairman
![Wink :wink: :wink:](/data/assets/smilies/wink1.png)
) for almost 30 years before retiring at 59 (the TV repair business died mostly). I was never educated in electronics. I started out on mechanical stuff (turntables, cassette tape players, speakers, etc.), then was offered other stuff and just went from there. I worked on Walkman, Amplifiers, CD players, Fax machines, Massage Chairs, Microwaves, Nintendo, Gameboy, Music keyboards...everything but TVs, lol
When the company I worked for had a slowdown and I was laid off, the service manager at a TV Dealer/servicer asked me if I wanted to try TVs. Back then everything was component level (Diodes, transistors, resistors, etc.). Eventually it became board level/modules. The beginning of the end started during the dot com bust when 1st Vizio appeared with low price TVs. Eventually there was a glut of cheap Chinese TV brands and the TV business became untenable
I got to see the glory years with new technologies coming fast and furious. Went from CRT direct view TVs to CRT projection, LCD, Plasma, LCD projection, HDILA, LCOS, DLP, Laser...eventually LCD and Plasma (flat panel) TVs won out, with Plasma going by the wayside. Since then, the OLED has been the only newcomer (Samsung has QLED, Quantum Dot...but they are LCD based)
A Guy