I have a huge fondness for Space: 1999. Was it cheesy?
Oh, most certainly. But it had some great sets, great effects (for the
time--and they still hold up), and the occasional great monster. The
images of this critter have stayed in my noggin for 30+ years. And as
silly as it is... it rocks. This video, uploaded by dowuchyalike on February 17, 2011 shows some highlights of what I call "The Squid Monster."
Egad! I'd be scared of that thing, too! Blinky lights and tentacles... a combination for doom....