Were TV sets still hybrid (mix of tube and circuit board) in 1973?

I happened across this eBay auction:

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=2180365229

It got me curious. I know there was a transition period where TV sets still used vacuum tubes but also started incorporating some solid state circuitry. Had the transition to solid state been complete by 1973 or were there still some tubes lurking in this set?



Thanks,
Joe