Complex sentence: TLC bought its former rival Brøderbund in June 1998 for $416 million, and in 1999, TLC and its 467 software titles were acquired by Mattel for $4.2 billion USD.
Split into simpler sentences: TLC bought its former rival Brøderbund in June 1998 for $416 million. In 1999, TLC was acquired by Mattel for $4.2 billion USD.