how to install samsung DVR recorder.Given the machine but no instruction?

That is like the most Bogus site to get sent to ......

OK here is Samsungs site type in your model number and you'll get the manual you need

http://www.samsung.com/us/support/

Also the easiest way is to connect the on the rear of the DVD Recorder there will be the following Red, White Yellow RCA jacks and a SVHS port. Connect from your DVR if thats were your coming from the following the Audio Out is the Red and White RCA jacks. Connect the Video Out from the Yellow out on the DVR and finally look for the SVHS Output and then run that to the SVHS port on the Samsung.

TaDa.........really I hope this helps you out