Re: TV Video Overlay circuitry?

Hugely many thanks for your replies. As you can see, my knowledge in
this area is minimal.

I don't intend to attempt this project myself, although I may program
the animations if its not too tricky.

At this stage I'm simply trying to find out if its possible and what
sort of costs might be involved, both for product development and
manufactured unit cost.

Ideally I want this to work with broadcast TV anywhere in the developed
world, but I recognise that the product would probably have to be made
in market-specific (NTSC / PAL) versions. And then there's digital TV
which presumably is different again?

The animations will be amorphous shapes, not text.

I was hoping to be able to use the antenna connector as it seems the
simplest for the consumer to connect. My VCR/DVD recorder has the
antenna cable going into it, and then coming out to the TV. I envisage
a similar arrangement with my product receiving the cable from a
VCR/DVD and then coming out to the TV. This presumably would then allow
my product to work with live TV broadcasts as well as recorded
material?

What unit costs might an RF receiver & re-modulator be in production? I
have absolutely no idea?

Thanks

Mitch

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