At only 50 hertz, the Samsung UE40C5100 has a fairly slow high frequency rate compared to most of the other medium display diagonal TVs that are a comparable age to this TV. The average high frequency rate of televisions of this spec and age is 220Hz, and the high frequency rates range from 50Hz to 1,600Hz.
There are a number of other 50Hz refresh rate televisions currently available which you might want to look at including because of its better review score, the Samsung UE46EH5000W.
Televisions with a faster high frequency rate that might be worth looking at include the Philips 50PFH4009 (£455.39) (60Hz).
What does "high frequency rate" mean?