My Dear, 
...Dear Friend,

Allow me to introduce myself. I am Dr. Zachary Smith -- reluctant stowaway on board the doomed Jupiter II expedition. It is most fortunate for Major West and the Robinson family that I decided to check the helium tank pressure before lift-off. No telling what would have become of the explorers had I not been on board. Why Mrs. Robinson would have perished in that cryo-freeze coffin if it weren't for yours truly.

Come to think of it, had I not been aboard to wake Major Don West during the dreadful meteor storm the outcome of the explorers could have been far worse. The faulty guidance system left us hopelessly Lost in Space. To make matters worse for me that cackling cacophony of a tin man --the robot, went bezerk!
 

Mechanical monster ...indeed, Major West. I merely tinkered with the ferrous frankenstein so I may have a chess playing equal.

Perhaps my program meddling is far too successful. The fugitive from the junkheap has yet to let anyone win.