If you are listening to the cricket on ABC you might have caught them mention retractable lights, and that Adelaide once had them.
It reminded me of this famous exchange from Richie Benaud.
A One Day state game at the Adelaide Oval. The SACA, in their wisdom, had built these ridiculous retractable light towers (great thinking...), Richie was commenting on them "they have built these marvelleous towers that don't spoil the asthetics of this beautiful ground at all. They take about an hour before they become fully erect".
Muffled laughing in the commentary box for a full minute or two where in the interim a wicket falls but no one can pull themselves together to comment.
After which Richie is first to speak "appropriately Alcock comes out to bat". Muffled laughing and no commentary until the end of the over.
