You should expect small fluctuations - the brightness of the picture on the TV screen, or the loudness of the sound, will affect the power the TV consumes.
You can look at the label on the back of the TV to see how much power it will consume.
Your emonCMS is showing 98 W for your TV. It is -98 W because the c.t. is facing the wrong way on the cable. You can either turn it around, or you can multiply by -1 inside emonCMS, on the Inputs page. Look at the Guide for more detail. 98 W sounds about right for a modern TV.
You photo of the TV shows the Raspberry Pi starting up. That is normal. You don’t normally need to see that, we expect the Raspberry Pi to not have a display. All your useful information will appear in emonCMS, either as Graphs or Dashboards.
As you have it with a 3-turns coils, your c.t. will read up to 33 A (8 kW), but the wire and the cable you have used is nowhere near capable of that. You could easily increase the number of primary turns up to 10, giving you a maximum current of 10 A, and then multiply the power in emonCMS by 0.1 to bring you back to the correct value, or -0.1 to make it positive). You should use 1.5 mm² wire for 10 A, because there will be 10 wires bunched together.
I expect to see a small “power” even when there is zero current. Here is what an emonTx V3.4 not in its case shows, with an a.c. adapter and 2 c.t’s plugged in:
21:38:52.906 -> AC present
21:38:52.906 -> MSG:1,Vrms:238.14,P1:12,P2:2,E1:0,E2:0,T1:18.25,pulse:0
21:39:02.830 -> MSG:2,Vrms:238.09,P1:11,P2:2,E1:0,E2:0,T1:18.25,pulse:0
21:39:12.790 -> MSG:3,Vrms:238.20,P1:12,P2:2,E1:0,E2:0,T1:18.25,pulse:0
21:39:22.749 -> MSG:4,Vrms:238.25,P1:11,P2:2,E1:0,E2:0,T1:18.25,pulse:0
21:39:32.708 -> MSG:5,Vrms:238.32,P1:12,P2:2,E1:0,E2:0,T1:18.25,pulse:0
21:39:42.631 -> MSG:6,Vrms:238.37,P1:12,P2:2,E1:0,E2:0,T1:18.25,pulse:0
This is the Continuous Monitoring V2.3 sketch, direct output (not via emonCMS).
If I was using a 10-turn primary winding for the c.t., and then dividing by 10 in emonCMS, the powers would be P1 = 1.2 W and P2 = 0.2 W. This power is due to electrical ‘noise’ inside the emonTx, and there’s little that you can do about it. It is after all only about 12 W in 24 kW for me, or about 0.05% of the maximum reading.