My Profile Mark Douglas Marcus is a Millennial contributor and photographer that likes to delve into all things home entertainment. He is DIYer and tech gadget enthusiast. person About create Posts comment Comments UsernameMarcus.daneEmail Addressmarkhysen@earthlink.netFirst NameMarkLast NameDouglasBioMarcus is a Millennial contributor and photographer that likes to delve into all things home entertainment. He is DIYer and tech gadget enthusiast.