I ordered a remote today.  At first the CSR told me it would not control my 622, but I told him that was not true.  He then put me on hold for a few minutes while he consulted with his supervisor.  When he came back he told me I was correct and he would get one out to me via two-day UPS.  Total cost was $27 and change with the tax and S&H.  I am keeping my fingers crossed that I will be able to program my Sony STR-DG820.  I will update after I get it on Thursday.