[ghaff]

Part of it is how often do people buy TVs? I doubt if I've bought one in over 15 years.

[ajross]

A quick Google says that 40M televisions are sold in the US every year, into a market with 130M households. So... a whole lot more often than once every decade and half.

[ghaff]

I assume a lot new "households" are created every year. Once a stable household is established it would surprise me a bit if TVs were regularly repurchased.