AppleScript App Quit Timer in Yosemite

Question

Hey all.  I think this is a simple question... but I don't really know.  I fall asleep with EyeTV running and wanted a sleep timer for it... years ago I found a little script online-- I think it's AppleScript... --to quit an app after a specified amount of time.  The script is:
display dialog "Timer duration (in minutes):" default answer "180"
delay ((the text returned of the result) * 60)
tell application "EyeTV" to quit -- Set AppName to the name of the application you want to quit.
That's it.  A box would pop up asking me to enter the number of minutes 'til quit (180 as the default), and after that amount of time EyeTV would quit.  The problem is, in Yosemite, no matter how much time I enter in the duration box, EyeTV quits the instant I hit return.  I imagine there was a minor change to AppleScript in Yosemite, and I'm hoping someone smarter than me might be able to spot what's changed.
Thanks for any help.

Answer 1

Better all around to avoid the delay command and use an applescript app with an idle loop.  save the following as a application from the AppleScript Editor, making sure to click the stay open after run handler checkbox, then run the application.
global timer, flag
on run
  display dialog "Timer duration (in minutes):" default answer "180"
  set timer to ((the text returned of the result) * 60)
  set flag to false
end run
on idle
  if flag then
  tell application "EyeTV" to quit -- Set AppName to the name of the application you want to quit.
  quit -- send this command so this app will quit on the next idle loop
  return 1
  else
  set flag to true
  return timer
  end if
end idle