The Engelbert Humperdinck Show

I am a big fan of Engelbert especially retro Englebert and of the original TV series.For years I have been researching in trying to purchase or obtain videos of the TV show and have been unsuccessful.Any information from IMDb members on how to go about acquiring these videos will be greatly appreciated.I have fortunate enough to attend countless number of his concerts and have enjoyed them all.I do however wish he would perform some of his more obscure hits like WINTER WORLD OF LOVE and ANOTHER TIME ANOTHER PLACE which would be very nostalgic and interesting to experience by revisiting his TV shows.I hope that there's another big fan out there who would be able to provide some helpful information in obtaining these videos