; TV2CHAN
;---------------------------------------------------------------
;! Specified a second TV channel (plane) used in some operations
;# ADVERB TV
;-----------------------------------------------------------------------
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;-----------------------------------------------------------------------
TV2CHAN   LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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TV2CHAN
Type: Adverb  (Real)
Use:  Second TV channel to be used when two are required.
Null Value:  0
Verbs:
  HUEWEDGE....Show a wedge on the TV suitable for TVHUEINT displays
              TV2CHAN is used for hue.  0 -> 2
  TVBLINK.....Verb which blinks 2 TV planes, can do enhancement also
              TV2CHAN is the 2nd plane.  0 -> 2.
  TVHUEINT....Verb to make hue/intensity display from 2 TV channels
              TV2CHAN is the hue channel.  0 -> 2
  TVMBLINK....Verb which blinks 2 TV planes either auto or manually
              TV2CHAN is the 2nd plane.  0 -> 2
  TVSPLIT.....Compare two TV image planes, showing halves
              TV2CHAN is the 2nd channel.  0 -> 2
Procedures:
  OFFHUINT....Proc which restores TV functions to normal after
              TVHUEINT.  TV2CHAN is the hue channel.
Tasks:
  PLAYR.......Task to load one or two images and play with them
              on the TV.  TV2CHAN is used for the 2nd image.
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