Not an interstitial (and am not the original poster), but, somewhat related, ABC (the Australian Broadcasting Corporation)'s logo is a Lissajous curve: https:/

Not an interstitial (and am not the original poster), but, somewhat related, ABC (the Australian Broadcasting Corporation)'s logo is a Lissajous curve: https://en.wikipedia.org/wiki/Australian_Broadcasting_Corporation#Lissajous_curve_logo https://en.wikipedia.org/wiki/Australian_Broadcasting_Corpor... The article does mention that 'In the early years of television, the ABC had been using Lissajous curves as fillers between programmes.'