Your TV's RS-232 serial port can do a lot more than you probably realized

You may recognize the RS-232 serial port on your TV, but do you know all that it can do? It's probably more than you realized ...

What the RS-232 port on your TV is actually for

You may have noticed your TV has a port marked RS-232 on the back that doesn't look like any other connector you have. Here's what it's for.
ZDNet

Your TV's RS-232 port is a powerful automation tool - how to unlock it (and what it can do)

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