Destiny Beta Keys for Xbox One:
6CF3H-HY??X-YYRHD-2T6KW-44RHZ - ?? = The first letter of each word of Nelson's Catch Phrase from The Simpsons
9HDQM-2YRWR-HQ29J-RQ93Y-??D6Z - ?? = Short lived Science Fiction TV show starring Lori Singer - ??.5
Good luck