原句应该是：We use it to do all kind of things, like watching TV and running the air conditioner.
= We use it for all kind of things, like watching TV and running the air conditioner.
= It is used (by us) to do all kind of things, like watching TV and running the air conditioner.
= It is used (by us) for all kind of things, like watching TV and running the air conditioner.
注：（ ）表示可以省略不写.
还可以把like换写成such as.