Why doesn't Netflix and Sky play anymore?

Hi. The day before yesterday we got a new TV from a friend. Problem when the TV starts it gives off crisp noises and a flickering picture. Normal program runs as well as Youtube. But if we want to watch Netflix or Sky we just get a red screen. On Netflix you can choose freely and it also shows the preview. But if we want to look it doesn't work. What could be the reason?

Sounds like a cable is defective or the internet is crazy.
Restart the router, reset the TV and see how it is.
Depending on what you are looking at, you may also reset the receiver or reinstall apps.

To your question "Why doesn't Netflix and Sky play anymore?" Unfortunately, this question is only asked very rudimentary what do you have or do you use because for a SMART TV the SMART TV has integrated tuner the model series would be useful to know. On the other hand, a set-top box uses SAT or a cable connection because your TV set has such a magenta picture, Telekom also offers the option of booking magenta TV and, as an alternative, you can also use AMAZONE Prime Netflix Watch films and series via stream via the AMAZON Prime service there are so many possibilities:-). LG from the BlackFox2000 :-)