聊天常用英语口语第99期:我们还是把电视关

commercial:an advertisement on the radio or on television (电台或电视播放的)广告
a commercial break(= a time during or between programmes when advertisements are broadcast) 插播广告时间

rerun:a television programme that is shown again 重播的电视节目
reruns of old TV shows 老电视节目的重播

rip-off:a copy of something, especially one that is less expensive or not as good as the original thing 仿制品;冒牌货 ~ (of sth) informal
The single is a rip-off of a 70s hit. 这首单曲是 70 年代的一首热门歌曲的翻版.

imitation:a copy of something, especially something expensive 仿制品;赝品
a poor/cheap imitation of the real thing 低劣的仿制品
This latest production is a pale imitation of the original(= it is not nearly as good). 最新推出的制作远不如它所依据的原着精彩.
imitation leather/pearls 人造革;假珍珠