This is the 543rd most frequent Czech word.
televizi
The Czech word "televizi" means "television" in the accusative or dative singular form.
Here, 'televizi' is in the accusative case, functioning as the direct object of the verb 'sledujeme' (we watch).
Každý večer sledujeme televizi.
Every evening, we watch television.
In this sentence, 'televizi' is still in the accusative case, as it represents the thing possessed, complementing the verb 'mám' (I have).
Mám novou televizi v obývacím pokoji.
I have a new television in the living room.
Here, 'televizi' is part of the prepositional phrase 'na televizi', which indicates the target of the watching action (dívám se).