They are not on the box. RCA has kept away from remastering the Hayride music, I would assume because they have enough of their own material to make money off of already. Recently, Tomato did a nice job reissuing the material.
One of my favorite obscure Elvis CDs is this one:
Elvis Presely The Jungle Room Sessions
One of the last "studio" sessions Elvis ever recorded. Has a fly on the wall sound to it, with great spoken parts with E talking about shooting the dog and the telephone.