How to stream/Live Sports on my HP Laptop?

[FallingLeave]

Hello:

I love to watch any sports, particularly 'football.'  I have been a longtime Xfinity customer, however I have  very new to today's digital set-up.

First...,  how to set-up Live Sports on my HP Laptop?

Second...., is there an extra-fee to watch Sport-program?

btw, I have no interest on any other features, such as movies, music and the like.

Thanks for any help on this regard in advance. 

[CCAndrew]

Anything available is through the Xfinity stream website, if sports are available they would be on the applicable channel on the website

[FallingLeave]

Anything available is through the Xfinity stream website, if sports are available they would be on the applicable channel on the website

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How to find those web-sites?  I'm very new to 'Stream/Live,' however I've been attempting to get one, so far no good results. 

I'd appreciate it if you'd provide me with further assistance on this issue.

Thanks,