I also worked at a TV picture tube plant. 3rd shift That one's in contention.
Repetitive as hell, and after only 2 days I had a repetitive motion issue in my wrist.
The fastest machine in the shop was the cutter. Also the first machine on the line The senior worker ran that. he loaded it with a steel roll from a forklift, and proceeded to die cut half a raw frame in the shape of a boomerang. After about 20 min the roll was done and there was a pallet of boomerangs.
The third machine was the bender press. I got put on this the first day. it was the second fastest machine on the line if you ran it right. A stack of welded boomerangs (a rectangle blank) was set on the input rack. I would take a square, orient it, and place it in the press. Then I'dd put both feet on pedals and both hands on buttons, and press both buttons. A weight about the size of a car would then drop, and bend a 90* angle all the way around the frame. Not terrible but I had nightmares of that weight dropping on my "guitar player's fingers". There was a considerable amount of time waiting for blanks from the second machine.
The second machine on the line was the MIG welder. It was the slowest machine and regularly went out of alignment, causing a stoppage. I got put on this my second week. I had to take two boomerangs from the pallet (if the senior worker was feeling nice, he would stack them neatly, or put a stack of about 30 min worth on the input rack, but usually not), separate the sharp, oily sheet metal, put one in the other hand while rotating it 90* (the source of the motion injury), align it on the welder jig, clamp it with a foot pedal, then start the dual welders with another foot pedal.
About every 45 min, one of the welder heads would start missing the joint and had to be realigned with an allen head adjustment. The new hire they put on the bender press was an ***, and kept giving me **** about not having blanks. I bitched to the foreman about being in between the two fastest machines and instead of telling the guy to cool it, they put me on the heavy duty box stapler. It looked like an engine hoist with a 2 foot air operated staple gun on the end. The box crew showed me how to launch 2" staples across the shop like a machine gun emplacement.
That lasted 2 days and then we got the notice that 3rd was being laid off despite us always meeting our quotas and covering for 2nd when they didn't meet theirs.