Where do I find a coursce a bout television techology

I am working for viet nam television , in technician position , I want to learn mo technology in television , could someone please tell me where I can learn?
Thanks

The BBC run broadcast technology courses which are well-regarded (but expensive) - perhaps you could persuade your employer to send you on one?

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Surely if you are already working in broadcasting you have a lot open to you already?

I've seen Vietnamese TV a couple of times and it looked technically good to me.