I was going to write what DY wrote, but then saw that he already wrote it.
I would just add that the reason why people often have internet and not tv is because of the practical (and often necessary) functions of internet, but they then have to be careful that they don’t end up using the internet for the same things or worse that they would have been using the tv for.
Also as Joseph pointed out, one should only use internet if necessary.
The danger of internet is precisely the fact that it is much easier to rationalize its use since it is practical and can be necessary. So one has to really think carefully before acquiring and/or using it to determine if it is really necessary. And even if one has to use internet, its use should be limited.
As for the fact that I am using Internet right now? I thought about it carefully, and came to the conclusion that it is the right thing for me to be doing right now.