You didn't post enough information for anyone to give any real direction to your question.
What type of outputs does your DVR have and what type of inputs does your TV incorporate.
If you have directv for example and are using an HD receiver or dvr, you can do the following:
HDMI out of the DVR to the TV, and component video and audio cables out of the HD DVR to the slingbox solo
Component video and audio cables out from the HD DVR to the slingbox and then another set of component video and audio cables out of the slingbox into the TV.
Either of the above 2 methods will give you the result your looking for.