R2D2 sends along some additional details about the German programming on TWC288.
53 - 3 "Airplane" : Komische Katastrophe w/ Mark Hamill (1980s)
R2D2 writes:
First pic is from a show called "Disco":
http://www.imdb.de/title/tt0204768/
The guy singing is the moderator of the show: Ilja Richter
http://www.imdb.de/name/nm0725274/
The show was music orientated as far as I know.
google translate:
55 - Krieg der Sterne disco dance
The 2nd & 3rd pic are from some musical number, unknown show to me. But the guy who is revealed under Darth Vaders helmet was famous and called "Harald Juhnke":
google translate:
Harald Junhke : http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=de&tl=en&u=http%3A%2F%2Fwww.imdb.de%2Fname%2Fnm0432086%2F
Both Junhke and Richter are listed in an episode of 'Disco' (S01E92) on July 10th 1978. But this seems too early as the segments have Yoda and a Snow Speeder in them.
58 - RTL Chew-Chewbacca Chewing Gum "galaktisch frisch!"
Pic 4 and 5 seem to be selfmade commercials for amusement inside a show with Thomas Gottschalk, who can be seen at the very end - just before the cut. Channel is "RTL".
http://www.imdb.de/name/nm0332052/
I am sure the commercials are from one of his shows, he moderatored during the 80s (or 90s?).
google translation:
67 - Tatt. German Episode 1 News Report
The last pic is clearly from channel "Pro Sieben", or "Pro 7", the program is called "Taff".
Thanks R2D2, this info should be able to spark the memories of someone who saw these shows.
Part of this retro-tv.de program talks about SW, people in the comments are doing the yes/no Episode IV in 78 thing, but the thread also mentions Richter.