Conversation so far:
Did Fred Rogers have anything to do with the development of the VCR?
Universal Studios vs. Sony Corporation of America, nicknamed the “Betamax Case,” was argued for a year. It had the testimony from Fred Rogers defending the VCR.
What was Fred Roger's role in supporting the VCR
Universal Studios vs. Sony Corporation of America, nicknamed the “Betamax Case,” was argued for a year. It had the testimony from Fred Rogers defending the VCR.
Was Fred Rogers in support of allowing recording TV programs at home?
Fred Rogers felt the VCR allows people to tape the 'Mister Rogers' Neighborhood' off-the-air and then become much more active in their family’s television life.

Question: Besides testifying, did Rogers have any other role in the VCR's popularity?
Self-contained rewrite: Besides testifying did Fred Rogers have any other role in the VCR's popularity besides testifying in the 'Betamax Case'?