In article . com,
Brent Bolin wrote:

Hi All,

Currently have 3 TV's and Comcast cable modem. The splitter in the
cross space has a total of 5 ports.

1. Comcast in
2. Cable modem
3. TV
4. TV
5. TV/DVR

I would like to add an additional TV.

Can I just purchase a 6 port cable splitter ?

Will it reduce the quality of the signal ?

Any input would be appreciated.

What's a cross space? Anyway, you have too many TVs already. Go get a
ping pong table or a croquet set instead.