Can't speak for KOJAK but I do love that AIRPORT 1975 score! Especially the end title. One of those melancholy and evocative themes that they just don't write any more, with that big arid, reverb-y string sound I miss so much.
I also love a lot of the orchestral library Cacavas wrote later on, which showed a more muscular side that we rarely got to hear from his early projects. Like this awesome album, SCREEN LEGENDS, written for the Bruton library: https://www.apmmusic.com/albums/BR-0371
Also waiting for those HANGAR 18 tapes to surface eventually!
Really good composer who deserves a posthumous rediscovery for sure.