“I don't watch much TV these days.”
Your friend asks you if you like a popular new TV show. You tell him you've never seen it because you don't watch a lot of TV anymore.
I don't watch much TV these days.
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these days
"These days" means "recently". But "recently" is used to talk about things that have happened over the last few weeks or months. "These days" is a longer time period, usually from the last 6 months to the last 20-30 years. You use "these days" to talk about major changes in your life or in society.
I don't watch much TV these days.
Kids these days don't even remember what life was like before mobile phones and the Internet.
It's getting harder and harder to earn a living as a photographer these days.
watch TV
"TV" is short for "television". Most people use the word "TV" most of the time rather than "television".
On weeknights I usually just watch TV for a couple of hours and then go to bed.