? about installing Tivo Ota

This weekend I will Install rooftop antenna . Installing later this month tivo ota and mini .
I will only have internet cable straight to modem and router
How to connect all . I may need to order extra items . This why I'm asking
Antenna cable to power 4 way splitter to tivo .
Tivo Ethernet cables to router .
Mini Ethernet cable to router .
Power units .
Is this correct way ?
Thanks
Rick
edit I forgot to say , I have Netiflex and Amazon prime