It's about the Philips 40PFK4100 / 12 model.
How do I get on the Internet with it and how can I log in to Netflix?
Is the TV Wi-Fi-capable or does something else have to be done to connect it to the Internet?
The TV is not a Smart TV.
So you need a FireTv or Chromecast for Netflix.
If it is not a Smart TV, you need an Amazon Fire Stick, a Chromecast or something similar. There are now various offers.
They contain a Wi-Fi receiver and turn your TV into a Smart TV.
Unfortunately, this is not a Smart TV, so it doesn't work.
However, a suggestion from me:
Buy an "Amazon Fire TV Stick with Alexa voice control", then you have a WLAN stick (integrated) and also a new CURRENT operating system for your TV, including Alexa voice control. It only costs 40 euro and significantly enhances your TV. You then have many apps, like on the smartphone and Netflix is also there.
https://www.amazon.de/...B07PVCVBN7
PS:
Sometimes this Amazon Fire TV Stick is also available in the special offer for less than 30 euro at Amazon.