diff --git a/test/prsim_plot.py b/test/prsim_plot.py
index 0408a91..8dd0a07 100755
--- a/test/prsim_plot.py
+++ b/test/prsim_plot.py
@@ -54,17 +54,21 @@ Use -exclude='regex' to specify signals to exclude (or -ex).""")
 				raise Exception("Unknown colour given. I cba to code up general colours atm.")
 
 	# Check if start time given
+	t0 = None
 	for arg in argv:
 		r = re.findall(r'-t0=(\d+)', arg)
 		if len(r) >= 1:
 			print(f"Filtering by start time t0 = {r[0]}")
+			t0 = int[r[0]]
 			entries = [e for e in entries if int(e[0]) >= int(r[0])]
 
 	# Check if end time given
+	t1 = None
 	for arg in argv:
 		r = re.findall(r'-t1=(\d+)', arg)
 		if len(r) >= 1:
 			print(f"Filtering by end time t1 = {r[0]}")
+			t1 = int[r[0]]
 			entries = [e for e in entries if int(e[0]) <= int(r[0])]
 
 
@@ -173,8 +177,12 @@ Use -exclude='regex' to specify signals to exclude (or -ex).""")
 	# ax.set_ylabel("Signal")
 	ax.set_yticks([])
 
+	# Plot signal names
+	sig_repeat_period = 20
 	for sig in unique_sigs:
 		ax.text(-1, sig_to_index(sig), sig, ha = "right", va = "center", size = 10)
+		ax.text(num_times, sig_to_index(sig), sig, ha = "left", va = "center", size = 10)	
+
 
 	for i in range(num_sigs-1):
 		ax.axhline(i+0.5, c = "white", lw = 2)