I am trying to copy a download link from the browser and paste it in another application, though this is done by right clicking on windows or by holding your finger on the link on android phones, I don't seem to be able to figure out a way to do it on an Android TV. Basically I can not get the option for copying by holding on the link in the browser, but holding works on other applications like MXPlayer as intended. I am using a mouse. Please let me know if you have a found a way to do so.
Just for clearance the link is not simply a text, think of it as a button that directs you to the link you want, something like reddit logo that you would press to go to the main page for example.
Try using the Android TV remote / widget on Your phone. Typically if you use it to edit a text field. The text from the field comes over to your phone and you can copy and paste easily