He (ほかの), others (たにん) and so on, depending on the specific situation ~
If it is "this is a TV set given to me by others", you can say.
これはひとからもらったテレビです.
There is generally no need to emphasize "don't" people here, just explain that they were given by others ~
Or just say who gave him the TV ~
I hope I can help you ~