Televisione vs. televisore
The Italian words 'televisione' and 'televisore' both relate to television, but they have distinct meanings and uses in everyday language.
Televisione
'Televisione' refers to the medium of television or the content that is broadcast.
Stasera c'è un bel film in televisione.
(There's a good movie on television tonight.)
La televisione italiana ha molti programmi interessanti.
(Italian television has many interesting programs.)
Preferisco la televisione alla radio.
(I prefer television to radio.)
Televisore
'Televisore' specifically refers to the physical device or TV set used to watch television.
Ho comprato un nuovo televisore per il salotto.
(I bought a new TV set for the living room.)
Il mio televisore è rotto e devo farlo riparare.
(My TV set is broken and I need to get it fixed.)
Abbiamo due televisori in casa.
(We have two TV sets at home.)
Summary
While 'televisione' refers to television as a medium or its content, 'televisore' specifically means the TV set or device. Use 'televisione' when talking about watching programs or the concept of TV, and 'televisore' when referring to the physical appliance.