X0101 EFFECT 33 LIVE 2008-08-15 0001193125-08-132031 485APOS 0000067160 MML SERIES INVESTMENT FUND 002-39334 S000023208 MML American Funds Growth Fund C000067574 Service Class 1 S000023209 MML American Funds International Fund C000067575 Service Class 1 S000023210 MML American Funds Core Allocation Fund C000067576 Service Class 1