I made a slight mistake, FindAll() should have been Find(), as Sys.HighlightObject can only highlight an object and not a list of objects!
For the time being, ignore the value. The idea here, is to test that your code is finding the correct object.
If Find("contentText", "DR 4010PT100") is found, but not Find("contentText", "TelevisGo"). Then it implies that Find("contentText", "TelevisGo") is not a child element of FindElement("//se-app/div/div/div/div/div[contains(@class, 'flex-1')]");
What does the Object Browser tree view look like for these items?