TV equipment demonstrated:
Arcam Delta 150 (NICAM Receiver)
Philips PM5644 (Pattern Generator)
Philips PM5687 (NICAM Encoder/Modulator)
Philips PM5686A (NICAM Modulator)
Philips PM5688 (NICAM Demodulator)
Philips PM5680 (IF Modulator)
Eiden 4220C006 (Up converter)

Test equipment:
Tektronix TDS3000 (Oscilloscope)
Agilent ESAE E4404B (Spectrum Analyser)
Agilent 8753ES (Network Analyser)

Related links:
IBA Engineering Announcements Graham Sawdy on NICAM 20 March 1990:    • IBA Engineering Announcements  Graha...  
BBC Engineering @ IBC84: http://www.bbceng.info/additions/2016...
RCA SoundInSyncs: https://worldradiohistory.com/BOOKSHE...