Is this a similar case to an 80's film (Uncle Buck? King Ralph?) that my sometime colleague Clive told me about? A Pin-Bot was seen/heard being played, even with character dialogue "I got a replay..". However, a glimpse of the displays showed the digits '00', as when the game was booted up and left in Attract Mode
Often in telly soaps the fruit machine(s) visible in bar scenes aren't actually running, but in a 'door open' state, so that roughly half the lamps remain lit steadily, alternating to the other half on a long interval to provide light inside for techs while preventing overheat damage to the vac-form plastics holding the lamps