Saying Ameen to the du’aa’ of a Shaykh on TV
Question

                What is the ruling on saying Ameen to the du’aa’ of one of the Shaykhs on a TV program?.
Praise be to Allah.Saying Ameen to du’aa’ is prescribed, whether the one who is saying du’aa’ is near or is far away and is being heard on a TV or radio show. The one who hears the du’aa’ and would like to be one of those who are included in it, should say Ameen. By doing so he is asking his Lord to answer this du’aa’ and fulfil what is in it, for He is the best of those who are asked. 
But if the program is recorded, then it is not prescribed to say Ameen to the du’aa’. 
The scholars of the Standing Committee for Issuing Fatwas were asked: If I hear a tape that was recorded a year or two ago, in which a shaykh is saying du’aa’, should I say Ameen to his du’aa’? 
They replied: 
Du’aa’ and saying Ameen to it are acts of worship; what is prescribed is to say Ameen to the du’aa’ of one who is saying du’aa’ at that moment. As for a du’aa’ recorded on a tape, it is not prescribed to say Ameen to it, because there is not really a person who is saying du’aa’.
And Allaah is the Source of strength. May Allaah send blessings and peace upon our Prophet Muhammad and his family and companions. 
Standing Committee for Academic Research and Issuing Fatwas