[net.video] How often should I clean heads?

smythe@charm.UUCP (Pete Smith) (02/20/85)

<this is for the line eater>
How often should video heads be cleaned?
The stores say every 20 hours.  Consumer
reports says after 2500 hours, and further
mentions that cleaning too often is 
harmfull.  Please respond by mail.
Thanks.
          Pete Smith
          AT&T Bell Labs - Murray Hill