If it's a new Smart TV then it should have WiFi internet connectivity, so you should be able to connect to your internet WiFi with that (I assume the FIOS modem has WiFi as that's how you connect to the phones and the IPad?)
If the TV doesn't have WiFi built in, then get a WiFi to HDMI interface, such as the Amazon Firestick, as Nigel suggested.
FiOS (Fiber Optic Service) uses a fiber optic cable instead of a coax cable for the internet connection into the house.
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Only some TV's are Android, there are numerous other TV operating systems - so more 'might be' than 'almost certainly'. There's also the issue that Android TV's really need specific apps written for them, and not just normal phone ones - there are ways to get round that
Rent a house in Metn, but it usually doesn't work very well (such as the picture on it's side, and no way of turning it).