The picture below is for your reference. Simply choose the frequency that matches the electrical frequency of your shooting environment. Please note that there might be more than one electrical frequency in an environment, so video flicker might not be completely avoided even with Flicker Filter on. frequency of Flicker Filter source: wikipedia
Yes, please use the TIMER function in TLC200, BCC100 and TLC200Pro in menu setting.
There is a function called "Time Stamp" in Brinno camera menu setting, you can turn it off.