can i use a splitter?

[IAN LEVER]

would it be safe to split the cable input to serve two boxes??

[aftermath]

of course.... but the more you add the weaker the signal, i think about 3 and you start losing quality.

[IAN LEVER]

i've just updated my card for v.m. got a arnet box so just making sure that i can & safe to use a splitter. thanks for your reply