For visitors out of Greece, there is a ‘free’ way to watch Olympiacos – Panathinaikos (and Panathinaikos v Olympiacos) in live streaming. All you need is be registered and have a funded account on several sportsbooks.
Is it Olympiakos or Olympiacos – Panathinaikos?
This might look like a strange question but there is an explaination. Apparently, the football club of Olympiakos is usually spelt with a ‘k’ and the basketball team is mentioned as Olympiacos with a ‘c’ instead.
The two different Olympiakos teams of the most popular sports in Greece are independent on the board level and directors. However, the difference between Olympiakos and Olympiacos looks more like a marketing trick from each team.
As for Panathinaikos, you will always see it written like this in all sports. However, specifically in basketball Panathinaikos has a sponsor, the gambling giant OPAP, so you might see them mentioned also as Panathinaikos OPAP.