[Richard_FM]

I imagine it wouldn't take too much effort to modify a System B set to receive a System D signal, the sound circuits would need to be modified to handle the 6.5MHz offset.

There were a few East-West good will gestures in the mid 1950s, between the death of Stalin and the ramping up of tensions towards the end of the decade.

I've heard there were some schemes for exiles to send money home to their families to buy Western goods for hard currency.