there is an actual youtube video that Raymie posted not too long ago (it is in the Classic Video pre-2000) or if you really can not find it, in youtube, you can search for ID open 1994, reminder: it runs for about 21 seconds, I think its has the opening for the 6pm news.
now to my discovery: a long time ago, I came across on a VHS tape an weather tease for WIBW-TV's 10pm report and i thought up until now, that clip was the news theme until I noticed the Various TV newscasts opens:
What I noticed from one of the Various TV newscasts opens, promos, station id's etc. part 95 was that WIBW-TV (Topeka Kansas) was using an unidentified news theme and it lasted from 14:45-15:05. I thought it was an softly played news music for the late 80's. here is the video I was viewing** (play through 14:45 and stop at 15:05)
I wish I could find out what kind of theme it is and who composed it and I can remember from a post is that the theme was composed in 1989 and I think its production music (unless it has a name/composer to go with it)