Seriously, they changed Gates McFadden's hairstyle almost every episode that first season. That's why they fired her after season one, they couldn't afford all the wigs
Not quite. One of the niggling things with Gates during Season One was the many hours of lost time resetting her fine hair every time it drooped under the hot lights, messing with continuity. When she came back
for Season Three they provided her with a selection of expensive, real-hair wigs to attempt to save some production time.
That set Marina Sirtis on a campaign to get a real-hair fall to replace the one she'd been wearing. It took her another year to get it, IIRC.