We do look at/for both. A summary of the way that we test TVs can be read here: https://www.choice.com.au/electronics-and-technology/home-entertainment/tvs-and-projectors/articles/how-we-test-tvs
It is a summary, as the test methodology runs to many pages. We do not take television testing lightly.
If the viewing panel notices anything significantly undesirable during the test, such as colour banding, their comments are noted and added to the profiles of the relevant models. This is in addition to these comments being considered when allocating scores in each of the assessment areas.
Testing is comparative, in that each TV is compared with many others. We also use a Sony Professional 55" OLED studio monitor as a reference for both picture quality and colour accuracy.
We use a wide variety of recorded content when testing, that ranges from standard definition DVDs through to UHD Blu-ray and much in between. You can see the scoring for individual content types, but the suggestion to take your own content along when you visit a store is a good one. We know that many owners these days are watching little or no free-to-air television and using streaming services instead. So both of these types of content are important as well as the media you can purchase in physical form.
