[19Seventy7]

What is a beam index design? Was trinitron basically a way of making a TV without paying fees? What were philips’ in line tubes, how are they different from PIL? (I’d guess maybe convergence etc?)

Once sonys’ patent ran out, didn’t many other companys copy the design under different names?

That makes sense about the wires and phosphors, in theory the horizontal could work if the transmissions were compatable, even if a little bit more work was required?

Thanks