I just received a reply from the Stanford University Library. They dated the performances as being September 15, 1967.
They evidently don't have the video footage from the public television broadcast. Here is what they have in their collection:
Jazz Violin Conclave
RAY NANCE and trio
1. The Man I Love [incomplete]
JEAN LUC PONTY and trio
2. Sunday Walk
3. Carol’s Garden
SVEND ASMUSSEN, RAY NANCE, JEAN LUC PONTY and quartet
4. [Unidentified septet]
5. [No content]
DIZZY GILLESPIE QUINTET
6. [Sudden Samba?]
7. Gentle Rain [incomplete] genre
JEAN LUC PONTY, violin ; with GEORGE GRUNTZ, piano ; NIELS HENNING ØRSTED PEDERSEN, bass ; DANIEL HUMAIR, drums
SVEND ASMUSSEN, RAY NANCE, JEAN LUC PONTY, violins ; with JOHN LEWIS, piano ; NIELS HENNING ØRSTED PEDERSEN, RAY BROWN, basses ; LOUIS BELLSON, drums
DIZZY GILLESPIE QUINTET
(DIZZY GILLESPIE, trumpet ; JAMES MOODY, alto saxophone, flute ; MIKE LONGO, piano ; RUSSELL GEORGE, electric bass ; OTIS "CANDY" FINCH, drums)