Early in the day the series would be shown on permanent rotation in episode order in a fixed slot per series.
Mid evening the series would be shown in a fixed slot per series but episodes shown in random order.
Later in the evening the episodes would be cut up on a scene by scene basis within series (i.e. random bits of Friends episodes but not mixed with How I Met Your Mother)
Late at night the episodes would be cut up with scenes of all the series mixed together (ideally thematically based to confuse further)
At about 1 in the morning scenes of other New York based series e.g. Law And Order, CSI NY are mixed in.