That stopped being true a long time ago, at least in the US. TVs can be had incredibly cheaply nowadays. A quick Amazon search shows many models available for circa $100. That's like less than a dozen fast food meals.
If you need a TV, save your money and buy one you can afford. A predatory payment plan should not be used.
Which is not to have a go at the US, but to just make the point that buying domestic appliances is not a simple "bad credit" case. Unlike chicken wings.
But, ultimately, you can only spend as much as you make in income, or go bankrupt. Choosing to tack on an interest payment to your costs is often an unnecessary additional cost for people. That’s true if you’re poor buying a rudimentary TV or rich maxing out credit cards to furnish your mansion.