If you have a tube preamp, then run your tuner or cable box 24/7 into your preamp with the rest of the system including the preamp turned off. Do one pair of ICs at a time. Or if you have a solid state preamp, you can have the preamp on and burn in both pairs of ICs at the same time while the amp is off.
About 100 hours of burn-in should give you an idea about how the cable will sound like eventually. Some cables may take longer to burn in.