Your newer, more capable Express may require more power than your old SE. If you are powering your Roku by plugging into the USB port on the TV, try powering from house power via the USB power adapter that came with the Roku.
Your old Sanyo may not supply enough power to operate the Express. The ports on many televisions only supply 0.5 amp or less, which is not enough to power a Roku at all or do so reliably.
If you don't have a Roku adapter handy, any other you have from another device should work as long as the fine print on it says it outputs at least 1 amp.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X
