In this context there is no difference between "television" and "the television". Making it specific with "the" might mean the set in the corner, not television as a medium of communication, but here, it's okay either way.
One might say "their best friend" instead of "a best friend". THE best friend makes no sense. Whose best friend, or to whom?
Some people claim that television is the root of all evil, while others think of television as a best friend. Some blame the television for society's violence, consumerism, and misinformation, while others see it as a rich resource for education and global understanding.
-------------------------------Q1: What is the difference between 'television' and 'the television' in the passage?
Q2: Can we use 'a best friend' instead of 'the best friend'?
2 answers
Help me