Sc0rp10

Hello, I am using flirc with my fire tv and a harmony 650 remote. All keys and functions work fine when I'm using the fire TV but when I switch to regular TV using either my harmony profiles or just the source button on the Samsung remote flirc sometimes receives key presses which are not meant for it. For instance after watching TV if I switch to fire TV I find that some movie has started on its own because flirc received some unintentional key presses. Keypresses are received both from harmony and the samsung TV remote. Is there a way to find out which keys flirc receives from my remotes and how do I disable or switch them to other keys? Thanks.