Persuade parents to join Netflix?

How can I persuade my parents to use Netflix? Since my parents already have Sky Ticket on their living room TV, I don't think they can really understand me. Sky Ticket unfortunately doesn't have the series that I would like to watch and watching in the living room is also annoying, because I actually only want to watch series in the evening because my parents watch their stuff. My parents also like to watch series, but as I said, everything has only been on Sky Ticket so far. A few weeks ago I asked my parents the only answer I got was: Why? We have Sky, we don't need that again.

You don't have the right to choose.

Tell them to buy Netflix Family and you invite the friends who want Netflix too. The friends pay their dues (3 euro per month as far as I know)

This means that your parents do not pay the full price but share the amount with friends