In principle, absolutely.
In practice, trying to fit many observed instances to to a curved utility-money curve will result in an implausibly sharp curve. So unless the TV purchase amounts to a large chunk of your income, this probably won't match the behavior.
Rabin has a nice example of this for risk aversion, showing that someone who wasn't happy taking a -100:110 coin flip due to a utility-money curve would have an irrationally large risk aversion for larger amounts.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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