电视机
电视机 (diànshìjī) is a noun meaning "television set" or "TV," referring specifically to the physical device. While 电视 (diànshì) can mean both "television" as a medium and the device itself, 电视机 specifically refers to the hardware. It is commonly used in both spoken and written Chinese.
客厅里的那台电视机用了快十年了。
kètīng lǐ de nà tái diànshìjī yòng le kuài shí nián le.
The TV in the living room has been used for almost ten years.
他搬家的时候买了一台大屏幕的电视机。
tā bānjiā de shíhou mǎi le yī tái dà píngmù de diànshìjī.
He bought a large-screen TV when he moved.
这台电视机的画质非常清晰。
zhè tái diànshìjī de huàzhì fēicháng qīngxī.
The picture quality of this TV is very clear.