How long will it take for my existing lawn to transition to a Pearl’s Premium lawn if I over-seed without first removing or tearing up my existing lawn?

Q: How long will it take for my existing lawn to transition to a Pearl’s Premium lawn if I over-seed without first removing or tearing up my existing lawn?
A: If you follow the Installation [1] and Maintenance [2] instructions closely, and over-seed again the following season, you should have a lawn that is close to 100% Pearl’s Premium grass seed by the end of the second season.