5 sentences

1. 电视需要天线和信号。

   diàn​shì xū​yào tiān​xiàn hé xìn​hào.

   A TV needs an antenna and a signal.

   Source: OpenSubtitles

2. 这台电视机需要安装室外天线。

   zhè tái diàn​shì​jī xū​yào ān​zhuāng shì wài tiān​xiàn.

   This television set requires an outdoor antenna.

   Source: Dong Chinese Dictionary

3. 他在屋顶上安装了一个电视天线。

   tā zài wū​dǐng shàng ān​zhuāng le yī gè diàn​shì tiān​xiàn.

   He installed a TV antenna on the roof.

   Source: Dong Chinese Dictionary

4. 这种新型天线具有很强的定向接收能力。

   zhè zhǒng xīn​xíng tiān​xiàn jù​yǒu hěn qiáng de dìng​xiàng jiē​shōu néng​lì.

   This new type of antenna has a strong directional reception capability.

   Source: Dong Chinese Dictionary

5. 他在上面有天线，很快就知道了这个内部消息。

   tā zài shàng​miàn yǒu tiān​xiàn, hěn kuài jiù zhī​dào le zhè​ge nèi​bù xiāo​xi.

   He has connections in high places, so he quickly got word of this insider information.

   Source: Dong Chinese Dictionary