A U.S. MILITARY team flew to Hanoi Tuesday to receive 11 sets of remains that the Vietnamese say may be those of missing American soldiers. . . . DAVID BERG & CO. of Chicago is recalling more than five tons of hot dogs suspected of being contaminated . . . AMERICA'S NO. 1 video chain is swallowing Erol's Inc., the No. 3 chain, in a $40 million deal that gives Blockbuster Entertainment Corp. a total of more than 1,700 stores.