You might want to add a PIN to the account at https://my.roku.com so that channels can't be added without entering the PIN. The Voice Remote Pro has two buttons that can be programed to launch any channel or you can use your voice to launch a channel. There are also those four buttons on all new remotes that launch specific channels and can't be changed, but there's a slew of these "partner buttons" that I believe could be programmed into a universal remote. Tivoburkee would probably know more about that.
Only universal remotes from UEI under such brands as One-For-All, Inteset, Insignia, and Onn will give access to discrete channels via the use of advanced codes or EFC's which are 5-digit codes for individual functions. Some include:
rdio 00026
you tube 00032
deezer 00054
prime video 00082
ted 00084
spotify 00086
pandora 00088
red bull 00090
cbs AA/Paramount+ 00128
yupp tv 00130
vudu 00138
showtime 00149
hulu 00151
hbo max 00153
WWW network 00180
crackle 00181
the CW 00182
happy kids tv 00184
starz 00222
roku ch 00118
fandango now 00133
netflix 00148
espn 00187
apple tv 00073
disney+ 00070
