It happend again last evening, and this time I had a friend visiting and my son and cats was with us in the livingroom.
Now have reliable witness, so noone can claim it was my imagination running wild
My boyfriend was told about the episodes, and he said this particular receiver is able to pick up signals from houses 1/2 mile away almost. Guess this is the most likely explanation.
Liked your version Dotsie. If this was the case, I would ask my son to tell the aliens to please pick up some of the weirdos they have dumped on earth on earlier trips here