Frustrated

When I was a little girl, I went to dancing school. I was part of a chorus line of eleven, called the Snookettes (no snickering allowed). We performed in many places, the most famous of which was the Ted Mack Amateur Hour. The show was never played in re-runs and I had never seen it nor did I get to see the rest of the show when I was there as we had to stay in the dressing room.
There is a man in California who owns the rights to all of the Amateur Hour shows. For Christmas I treated myself to a copy of my show. WOW, what a hoot. I wanted very much to cut out my three minutes of the one hour show and put it on You Tube and Facebook. Two family members said no problem they would do it for me, but did not have any luck. I read all sorts of forums entries at You Tube and read that I needed some video editing software and that there were lots of free ones on the web. I downloaded Freemake Video converter. It was supposed to allow me to cut out my clip and upload it directly to You Tube. But instead, it uploaded the first 15 minutes of the show, Hazel Bishop commercials and all. I tried it twice, both with the same results.
As a last resort, I asked the question on Yahoo. My only response was for a $25 program that makes DVD.....Hello, I already have the DVD, I just want to cut 3 minutes out of it.

Anyone have any suggestions?