We can't guess what connections you have available on your mystery VCR, DVD, and Element TV.
VCR would connect with AV cables.
DVD could have HDMI, component video, or composite video with audio.
If the TV doesn't have enough av connections you can get an av input selector to expand them.
You would also connect the DVD to the AV input on the VCR and connect the AV output of the VCR to the TV. Not the best thing for video quality but it will work until you get an input selector or maybe upgrade to a DVD with HDMI.