Hmmm.... Only later when they were marketing TV's?
Hated Sony for selling essentially the same TV with the same guts but leaving out one chip (for example) so that "Picture in Picture" required you spend an extra $500 on the high end model.
I always suspected it went something like this:
• Engineers describe the feature set they can deliver for a new TV.
• Bean counters determine it can be manufactured for $500.
• Marketing decide there will be three models: the F, the FX, and the FX+. Determine pricing will be: $800, $1200, $1800.
• Marketing aligns the FX+ model with the engineers feature set — cross off features to arrive at the FX — cross off even more to arrive at the F.
• Profit.
I shouldn't beat up on Sony though — all consumer electronics have been doing something like this since ... when ... the 1950's or so?