Revealing mistake: The dialogue says they are in San Francisco while they wait for someone to pick them up for day laboring. A few moments later, we see on the top of the building "Vancouver Ice and Cold Storage". They're clearly filming in Vancouver, not in San Francisco. (00:01:25)
Other mistake: According to reverse-time issue: In court, when Quinn looks at the clock on the wall, you can see that the clock still goes forward, despite of the anticlockwise indicators since the digits are inverted. (00:31:25)
Suggested correction: You just explained the plot that Max explained to the group. Time is moving forward to the people of that world but moving backwards for them. So the anti-clockwise movement of the hands show time moving backwards while the reverse order of the numbers shows time moving forward.
Other mistake: The Sliders discover the reverse-time issue when they notice that the clock on the wall is backward. However, in other shots, clocks look normal. Look carefully at the clocks on the judge's desk as the camera pans by.
