The necessary changes to the original 1960's series appear to have been painstakingly thought out. The story line has always been a good one and did not need alteration. The writing is sharp, witty and thoroughly believable. However, sci-fi shows always need more from its actors than shows that do not require any of us to stretch our imaginations. Fortunately, all actors come across as believing in their roles and that's what is reflected on the TV screen. No one should be disappointed with this latest version of Lost in Space.