All D is digital - you are good to go unless you use OTA!
The OP's OLD RCA boxes will NOT be able to tune OTA, either analog or digital.
They didn't say what the RCA model number was, but most of the old boxes had OTA pass thru's, not tuners.
Jimbo
correct. i took a glance at a few of the old rca boxes to help the OP and none had OTA tuners.
Will my old RCA-- D* Boxes still receive my local channels after the digital changeover?
These guys are making a lot of assumptions without asking the right questions. Do you or did you ever pay D* for local channels? If that answer is yes, then you should be good. SD locals over the satellite are not going away on 2/17/09.
They just not might be available via the old RCA boxes as only a few select markets had locals available on the RCA boxes; Chicago was one of them in the 900's.