A CPU generates a real recording address y from y=n+m, where absolute time x is obtained from an ATIP decoder. The communication device provides a means for the guest to indicate whether or not to clean the room or other like instructions or commands. The first partitions are transversely mounted, at the propagation of the wave in the guide, define cavities in the longitudinal direction of the guide, are rigidly connected to the first portion and the second conductive partitions that have one or more openings defining capacitive irises, and, in combination with the adjacent guide lengths, form immitance inverters. A supply of fresh floss and a take-up reel are configured to feed fresh floss incrementally into suspension between the first and second projections while taking-up used floss and applying a tension to the suspended floss.