Motherwell host a Hibernian team who have been denied wins over Dundee United and Hearts in recent weeks by poor decisions.
Ryan McGivern was wrongly adjudged to have committed a foul inside rather than outside the box to conceded a late penalty at Tannadice while the officials last weekend failed to spot that a Leigh Griffiths free-kick had bounced over the line.
But Hibs benefited from two similar incidents on their last Friday night visit to Fir Park, a 4-0 win in October. Hibs goalkeeper Ben Williams scooped Stevie Hammell's effort out from behind his line and the Motherwell left-back later conceded a penalty for a challenge outside the box.
McCall said: "If we can't afford goal-line technology, we can't afford it.
"But we knew Stevie Hammell's goal 10 seconds later was a goal. Everyone knew Leigh Griffiths' goal was a goal 10 seconds later because the TV is there.
"I will concentrate on the football but certainly there is a debate to be had whether we can use the TV behind us.
"But if it's just when it's live on the telly that we get that, then it's uneven.
"It's all about making the right decisions but if it can't be the same for all clubs then that's a problem."
